21720424

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{14519}}^1$

素因数の和:14553

約数の個数: 32

約数和(自身を含む): 47044800

約数和(自身を除く): 25324376

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 374, 748, 1496, 14519, 29038, 58076, 116152, 159709, 246823, 319418, 493646, 638836, 987292, 1277672, 1974584, 2715053, 5430106, 10860212, 21720424]

約数ペア:

[(1, 21720424), (2, 10860212), (4, 5430106), (8, 2715053), (11, 1974584), (17, 1277672), (22, 987292), (34, 638836), (44, 493646), (68, 319418), (88, 246823), (136, 159709), (187, 116152), (374, 58076), (748, 29038), (1496, 14519)]