PerfectNumber

PerfectNumber(n)

returns the nth perfect number. In number theory, a perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself. Currently 0 <= n <= 47 can be computed, otherwise the function returns unevaluated.

See

• Wikipedia - Perfect number
• Wikipedia - List of perfect numbers

Examples

>> Table(PerfectNumber(i), {i,5})
{6,28,496,8128,33550336}

Implementation status

• ☑ - partially implemented

Github

• Implementation of PerfectNumber