20931736

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12889}}^1$

素因数の和:12931

約数の個数: 32

約数和(自身を含む): 46404000

約数和(自身を除く): 25472264

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12889, 25778, 51556, 90223, 103112, 180446, 360892, 373781, 721784, 747562, 1495124, 2616467, 2990248, 5232934, 10465868, 20931736]

約数ペア:

[(1, 20931736), (2, 10465868), (4, 5232934), (7, 2990248), (8, 2616467), (14, 1495124), (28, 747562), (29, 721784), (56, 373781), (58, 360892), (116, 180446), (203, 103112), (232, 90223), (406, 51556), (812, 25778), (1624, 12889)]