21259926

素因数分解:

$2^1\times 3^2\times {\mathrm{521}}^1\times {\mathrm{2267}}^1$

素因数の和:2796

約数の個数: 24

約数和(自身を含む): 46171944

約数和(自身を除く): 24912018

約数列:

[1, 2, 3, 6, 9, 18, 521, 1042, 1563, 2267, 3126, 4534, 4689, 6801, 9378, 13602, 20403, 40806, 1181107, 2362214, 3543321, 7086642, 10629963, 21259926]

約数ペア:

[(1, 21259926), (2, 10629963), (3, 7086642), (6, 3543321), (9, 2362214), (18, 1181107), (521, 40806), (1042, 20403), (1563, 13602), (2267, 9378), (3126, 6801), (4534, 4689)]