21778124

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{2389}}^1$

素因数の和:2489

約数の個数: 24

約数和(自身を含む): 39750480

約数和(自身を除く): 17972356

約数列:

[1, 2, 4, 43, 53, 86, 106, 172, 212, 2279, 2389, 4558, 4778, 9116, 9556, 102727, 126617, 205454, 253234, 410908, 506468, 5444531, 10889062, 21778124]

約数ペア:

[(1, 21778124), (2, 10889062), (4, 5444531), (43, 506468), (53, 410908), (86, 253234), (106, 205454), (172, 126617), (212, 102727), (2279, 9556), (2389, 9116), (4558, 4778)]