56981169

素因数分解:

$3^2\times 7^2\times {\mathrm{129209}}^1$

素因数の和:129229

約数の個数: 18

約数和(自身を含む): 95744610

約数和(自身を除く): 38763441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 129209, 387627, 904463, 1162881, 2713389, 6331241, 8140167, 18993723, 56981169]

約数ペア:

[(1, 56981169), (3, 18993723), (7, 8140167), (9, 6331241), (21, 2713389), (49, 1162881), (63, 904463), (147, 387627), (441, 129209)]