641532017

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{253871}}^1$

素因数の和:253916

約数の個数: 12

約数和(自身を含む): 773801856

約数和(自身を除く): 132269839

約数列:

[1, 7, 19, 133, 361, 2527, 253871, 1777097, 4823549, 33764843, 91647431, 641532017]

約数ペア:

[(1, 641532017), (7, 91647431), (19, 33764843), (133, 4823549), (361, 1777097), (2527, 253871)]