20855188

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1543}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 38044160

約数和(自身を除く): 17188972

約数列:

[1, 2, 4, 31, 62, 109, 124, 218, 436, 1543, 3086, 3379, 6172, 6758, 13516, 47833, 95666, 168187, 191332, 336374, 672748, 5213797, 10427594, 20855188]

約数ペア:

[(1, 20855188), (2, 10427594), (4, 5213797), (31, 672748), (62, 336374), (109, 191332), (124, 168187), (218, 95666), (436, 47833), (1543, 13516), (3086, 6758), (3379, 6172)]