19783945

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{2903}}^1$

素因数の和:2984

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 5306615

約数列:

[1, 5, 29, 47, 145, 235, 1363, 2903, 6815, 14515, 84187, 136441, 420935, 682205, 3956789, 19783945]

約数ペア:

[(1, 19783945), (5, 3956789), (29, 682205), (47, 420935), (145, 136441), (235, 84187), (1363, 14515), (2903, 6815)]