20479739

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3581}}^1$

素因数の和:3650

約数の個数: 16

約数和(自身を含む): 25217280

約数和(自身を除く): 4737541

約数列:

[1, 7, 19, 43, 133, 301, 817, 3581, 5719, 25067, 68039, 153983, 476273, 1077881, 2925677, 20479739]

約数ペア:

[(1, 20479739), (7, 2925677), (19, 1077881), (43, 476273), (133, 153983), (301, 68039), (817, 25067), (3581, 5719)]