28521549

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3257}}^1$

素因数の和:3409

約数の個数: 24

約数和(自身を含む): 47436480

約数和(自身を除く): 18914931

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 3257, 8757, 9771, 22799, 29313, 68397, 205191, 452723, 1358169, 3169061, 4074507, 9507183, 28521549]

約数ペア:

[(1, 28521549), (3, 9507183), (7, 4074507), (9, 3169061), (21, 1358169), (63, 452723), (139, 205191), (417, 68397), (973, 29313), (1251, 22799), (2919, 9771), (3257, 8757)]