21259402

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{2423}}^1$

素因数の和:2573

約数の個数: 16

約数和(自身を含む): 32985792

約数和(自身を除く): 11726390

約数列:

[1, 2, 41, 82, 107, 214, 2423, 4387, 4846, 8774, 99343, 198686, 259261, 518522, 10629701, 21259402]

約数ペア:

[(1, 21259402), (2, 10629701), (41, 518522), (82, 259261), (107, 198686), (214, 99343), (2423, 8774), (4387, 4846)]