21369788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15667}}^1$

素因数の和:15713

約数の個数: 24

約数和(自身を含む): 42115584

約数和(自身を除く): 20745796

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15667, 31334, 62668, 172337, 344674, 485677, 689348, 971354, 1942708, 5342447, 10684894, 21369788]

約数ペア:

[(1, 21369788), (2, 10684894), (4, 5342447), (11, 1942708), (22, 971354), (31, 689348), (44, 485677), (62, 344674), (124, 172337), (341, 62668), (682, 31334), (1364, 15667)]