20391472

素因数分解:

$2^4\times {\mathrm{431}}^1\times {\mathrm{2957}}^1$

素因数の和:3396

約数の個数: 20

約数和(自身を含む): 39613536

約数和(自身を除く): 19222064

約数列:

[1, 2, 4, 8, 16, 431, 862, 1724, 2957, 3448, 5914, 6896, 11828, 23656, 47312, 1274467, 2548934, 5097868, 10195736, 20391472]

約数ペア:

[(1, 20391472), (2, 10195736), (4, 5097868), (8, 2548934), (16, 1274467), (431, 47312), (862, 23656), (1724, 11828), (2957, 6896), (3448, 5914)]