20117838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257921}}^1$

素因数の和:257939

約数の個数: 16

約数和(自身を含む): 43330896

約数和(自身を除く): 23213058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257921, 515842, 773763, 1547526, 3352973, 6705946, 10058919, 20117838]

約数ペア:

[(1, 20117838), (2, 10058919), (3, 6705946), (6, 3352973), (13, 1547526), (26, 773763), (39, 515842), (78, 257921)]