218706241

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{2531}}^1$

素因数の和:2601

約数の個数: 24

約数和(自身を含む): 261180864

約数和(自身を除く): 42474623

約数列:

[1, 13, 17, 23, 221, 289, 299, 391, 2531, 3757, 5083, 6647, 32903, 43027, 58213, 86411, 559351, 731459, 756769, 989621, 9508967, 12865073, 16823557, 218706241]

約数ペア:

[(1, 218706241), (13, 16823557), (17, 12865073), (23, 9508967), (221, 989621), (289, 756769), (299, 731459), (391, 559351), (2531, 86411), (3757, 58213), (5083, 43027), (6647, 32903)]