20638088

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{62921}}^1$

素因数の和:62968

約数の個数: 16

約数和(自身を含む): 39640860

約数和(自身を除く): 19002772

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 62921, 125842, 251684, 503368, 2579761, 5159522, 10319044, 20638088]

約数ペア:

[(1, 20638088), (2, 10319044), (4, 5159522), (8, 2579761), (41, 503368), (82, 251684), (164, 125842), (328, 62921)]