1390854879

素因数分解:

$3^2\times {\mathrm{47}}^2\times {\mathrm{69959}}^1$

素因数の和:70059

約数の個数: 18

約数和(自身を含む): 2052696360

約数和(自身を除く): 661841481

約数列:

[1, 3, 9, 47, 141, 423, 2209, 6627, 19881, 69959, 209877, 629631, 3288073, 9864219, 29592657, 154539431, 463618293, 1390854879]

約数ペア:

[(1, 1390854879), (3, 463618293), (9, 154539431), (47, 29592657), (141, 9864219), (423, 3288073), (2209, 629631), (6627, 209877), (19881, 69959)]