7978779

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 12046320

約数和(自身を除く): 4067541

約数列:

[1, 3, 9, 43, 53, 129, 159, 387, 389, 477, 1167, 2279, 3501, 6837, 16727, 20511, 20617, 50181, 61851, 150543, 185553, 886531, 2659593, 7978779]

約数ペア:

[(1, 7978779), (3, 2659593), (9, 886531), (43, 185553), (53, 150543), (129, 61851), (159, 50181), (387, 20617), (389, 20511), (477, 16727), (1167, 6837), (2279, 3501)]