20564912

素因数分解:

$2^4\times {\mathrm{521}}^1\times {\mathrm{2467}}^1$

素因数の和:2996

約数の個数: 20

約数和(自身を含む): 39937176

約数和(自身を除く): 19372264

約数列:

[1, 2, 4, 8, 16, 521, 1042, 2084, 2467, 4168, 4934, 8336, 9868, 19736, 39472, 1285307, 2570614, 5141228, 10282456, 20564912]

約数ペア:

[(1, 20564912), (2, 10282456), (4, 5141228), (8, 2570614), (16, 1285307), (521, 39472), (1042, 19736), (2084, 9868), (2467, 8336), (4168, 4934)]