21086716953

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{722321}}^1$

素因数の和:722624

約数の個数: 16

約数和(自身を含む): 28985337216

約数和(自身を除く): 7898620263

約数列:

[1, 3, 37, 111, 263, 789, 9731, 29193, 722321, 2166963, 26725877, 80177631, 189970423, 569911269, 7028905651, 21086716953]

約数ペア:

[(1, 21086716953), (3, 7028905651), (37, 569911269), (111, 189970423), (263, 80177631), (789, 26725877), (9731, 2166963), (29193, 722321)]