12-Mar-1995
Unsolved Problem 11:
Are there any odd perfect numbers?
A perfect number is a positive integer
that is equal to the sum of all its positive divisors,
other than itself.
For example, 28 is perfect because 28=1+2+4+7+14.
Reference:
- [Shanks 1985]
- Daniel Shanks,
Solved and Unsolved Problems in Number Theory.
Chelsea Publishing Company. New York: 1985.
Page 2.
Odd Perfect Numbers
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