12780915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17389}}^1$

素因数の和:17411

約数の個数: 24

約数和(自身を含む): 23789520

約数和(自身を除く): 11008605

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 17389, 52167, 86945, 121723, 260835, 365169, 608615, 852061, 1825845, 2556183, 4260305, 12780915]

約数ペア:

[(1, 12780915), (3, 4260305), (5, 2556183), (7, 1825845), (15, 852061), (21, 608615), (35, 365169), (49, 260835), (105, 121723), (147, 86945), (245, 52167), (735, 17389)]