The Perfect Number is the positive integer that is equal to the total sum of every positive number included in the positive divisors but the number mentioned itself is excluded from the sum. For example,1,2,3 has a sum of 6 which makes it a Perfect Number. The total sum of each divisor excludes the Perfect Number itself. This part is known as the aliquot sum, so the conclusion is that a Perfect Number is a number that is equal to an aliquot sum.
Perfect Number
In the theory of number, any Perfect Number is eventually a positive integer which is gradually equal to the overall sum of the positive divisors which normally exclude the number itself.