Examples of perfect numbers 6: The divisors of 6 are 1, 2, 3 & 6. To show that this is a perfect number, we sum up all the divisors except the number itself. 1 + 2 + 3 = 6 28 1 + 2 + 4 + 7 + 14 = 28 496 and 8128 are also perfect numbers.
