257685507

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{1039}}^1\times {\mathrm{1621}}^1$

素因数の和:2683

約数の個数: 24

約数和(自身を含む): 394729920

約数和(自身を除く): 137044413

約数列:

[1, 3, 9, 17, 51, 153, 1039, 1621, 3117, 4863, 9351, 14589, 17663, 27557, 52989, 82671, 158967, 248013, 1684219, 5052657, 15157971, 28631723, 85895169, 257685507]

約数ペア:

[(1, 257685507), (3, 85895169), (9, 28631723), (17, 15157971), (51, 5052657), (153, 1684219), (1039, 248013), (1621, 158967), (3117, 82671), (4863, 52989), (9351, 27557), (14589, 17663)]