Check Perfect Number Online

Perfect Number Online Check is simple and reliable tool to check whether a given number is Perfect or not. View all Online Tools

A perfect number is a positive integer number in which sum of all positive divisors excluding the number itself is equal to that number.

Perfect Number Examples, 28 is perfect number since its divisors are 1, 2, 4, 7 and 14. Sum of divisors is: 1+2+4+7+14=28.