PowerShell Script For Generating The Site Collections List With Multiple Administrators

Running this script will generate a report, which displays the list of site collections that has multiple site collection administrators and will also display the total number of users who have access to those site collections.

Add - PSSnapin microsoft.sharepoint.powershell - ErrorAction SilentlyContinue
Add - Content "Sites.csv" - Value "SiteCollection Name,SiteCollection URL, SiteCollection Administrators, Users Count,Usage in MB"
$webApp = Get - SPWebApplication
foreach($webapps in $webapp)
{
    foreach($SiteCollection in $webApps.Sites)
    {
        $url = $SiteCollection.Url
        $webs = Get - SPWeb $URL[boolean] $WriteToFile = $true
        $weburl = $SiteCollection.OpenWeb()
        $siteowner = ""
        foreach($siteAdmin in $weburl.SiteAdministrators)
        {
            $siteowner = $siteAdmin.DisplayName + "|" + $siteowner
        }
        foreach($web in $webs)
        {
          #Grab all users in the site collections
            $siteUserCnt = $web.AllUsers.Count
            $Siteurl = $web.Url
            $siteTitle = $web.Title
            $site = Get - SPSite $Siteurl
            $siteusage = $site.Usage.Storage / 1 MB

            Add - Content - Path "Sites.csv" - Value "$siteTitle,$Siteurl,$siteowner,$siteUserCnt,$siteusage"
            $web.Dispose()
        }
    }
}

Thanks for using this script. Happy SharePointing.