21715628

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44867}}^1$

素因数の和:44893

約数の個数: 18

約数和(自身を含む): 41772108

約数和(自身を除く): 20056480

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44867, 89734, 179468, 493537, 987074, 1974148, 5428907, 10857814, 21715628]

約数ペア:

[(1, 21715628), (2, 10857814), (4, 5428907), (11, 1974148), (22, 987074), (44, 493537), (121, 179468), (242, 89734), (484, 44867)]