Current Data About
perfect number
| (P18) |
|
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| (P31) |
(Q77358734)
|
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| (P279) |
(Q21199)
(Q60679) (Q13366104)
(Q50707) |
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| (P373) |
Perfect number
|
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| (P527) |
(Q117009395)
|
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| (P910) |
(Q9072877)
|
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| (P1343) |
(Q2041543)
(Q124737632)
|
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| (P1482) |
https://mathoverflow.net/tags/perfect-numbers
https://math.stackexchange.com/tags/perfect-numbers |
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| (P2534) |
\sigma(n)-2n=s(n)-n=0
|
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| (P6104) |
(Q8487137)
|
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| (P7235) |
n
\sigma(n)
|
other details
| description | positive integer which equals the sum of all its divisors |
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