19755931

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^2\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 18

約数和(自身を含む): 22315020

約数和(自身を除く): 2559089

約数列:

[1, 13, 29, 139, 169, 377, 841, 1807, 4031, 4901, 10933, 23491, 52403, 116899, 142129, 681239, 1519687, 19755931]

約数ペア:

[(1, 19755931), (13, 1519687), (29, 681239), (139, 142129), (169, 116899), (377, 52403), (841, 23491), (1807, 10933), (4031, 4901)]