21408504481

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{13838723}}^1$

素因数の和:13838760

約数の個数: 16

約数和(自身を含む): 27898867584

約数和(自身を除く): 6490363103

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 13838723, 96871061, 179903399, 235258291, 1259323793, 1646808037, 3058357783, 21408504481]

約数ペア:

[(1, 21408504481), (7, 3058357783), (13, 1646808037), (17, 1259323793), (91, 235258291), (119, 179903399), (221, 96871061), (1547, 13838723)]