20811154

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3943}}^1$

素因数の和:3994

約数の個数: 32

約数和(自身を含む): 39755520

約数和(自身を除く): 18944366

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 182, 203, 377, 406, 754, 2639, 3943, 5278, 7886, 27601, 51259, 55202, 102518, 114347, 228694, 358813, 717626, 800429, 1486511, 1600858, 2973022, 10405577, 20811154]

約数ペア:

[(1, 20811154), (2, 10405577), (7, 2973022), (13, 1600858), (14, 1486511), (26, 800429), (29, 717626), (58, 358813), (91, 228694), (182, 114347), (203, 102518), (377, 55202), (406, 51259), (754, 27601), (2639, 7886), (3943, 5278)]