21705081

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{1429}}^1$

素因数の和:1576

約数の個数: 16

約数和(自身を含む): 29789760

約数和(自身を除く): 8084679

約数列:

[1, 3, 61, 83, 183, 249, 1429, 4287, 5063, 15189, 87169, 118607, 261507, 355821, 7235027, 21705081]

約数ペア:

[(1, 21705081), (3, 7235027), (61, 355821), (83, 261507), (183, 118607), (249, 87169), (1429, 15189), (4287, 5063)]