21553804

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1721}}^1$

素因数の和:1857

約数の個数: 24

約数和(自身を含む): 39344256

約数和(自身を除く): 17790452

約数列:

[1, 2, 4, 31, 62, 101, 124, 202, 404, 1721, 3131, 3442, 6262, 6884, 12524, 53351, 106702, 173821, 213404, 347642, 695284, 5388451, 10776902, 21553804]

約数ペア:

[(1, 21553804), (2, 10776902), (4, 5388451), (31, 695284), (62, 347642), (101, 213404), (124, 173821), (202, 106702), (404, 53351), (1721, 12524), (3131, 6884), (3442, 6262)]