How can I calculate the number of users on a fan page

I want the total number of users to like on the fan page through the api or FQL chart, the account should be similar to the user’s comment, message or any other action on this fan page, for example, I like 10 (comment, another user post) on which then the fan page now what I want is the number of my favorites on this page through the api or fql graph, which will be 10.

Thanks in advance or help is definitely appreciated