21204027

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2971}}^1$

素因数の和:3051

約数の個数: 24

約数和(自身を含む): 33536048

約数和(自身を除く): 12332021

約数列:

[1, 3, 9, 13, 39, 61, 117, 183, 549, 793, 2379, 2971, 7137, 8913, 26739, 38623, 115869, 181231, 347607, 543693, 1631079, 2356003, 7068009, 21204027]

約数ペア:

[(1, 21204027), (3, 7068009), (9, 2356003), (13, 1631079), (39, 543693), (61, 347607), (117, 181231), (183, 115869), (549, 38623), (793, 26739), (2379, 8913), (2971, 7137)]