217156639

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{22861}}^1$

素因数の和:22950

約数の個数: 16

約数和(自身を含む): 263370240

約数和(自身を除く): 46213601

約数列:

[1, 7, 23, 59, 161, 413, 1357, 9499, 22861, 160027, 525803, 1348799, 3680621, 9441593, 31022377, 217156639]

約数ペア:

[(1, 217156639), (7, 31022377), (23, 9441593), (59, 3680621), (161, 1348799), (413, 525803), (1357, 160027), (9499, 22861)]