20642258

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3911}}^1$

素因数の和:3962

約数の個数: 32

約数和(自身を含む): 39432960

約数和(自身を除く): 18790702

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 182, 203, 377, 406, 754, 2639, 3911, 5278, 7822, 27377, 50843, 54754, 101686, 113419, 226838, 355901, 711802, 793933, 1474447, 1587866, 2948894, 10321129, 20642258]

約数ペア:

[(1, 20642258), (2, 10321129), (7, 2948894), (13, 1587866), (14, 1474447), (26, 793933), (29, 711802), (58, 355901), (91, 226838), (182, 113419), (203, 101686), (377, 54754), (406, 50843), (754, 27377), (2639, 7822), (3911, 5278)]