18405621

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12101}}^1$

素因数の和:12133

約数の個数: 18

約数和(自身を含む): 28790658

約数和(自身を除く): 10385037

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12101, 36303, 108909, 157313, 471939, 1415817, 2045069, 6135207, 18405621]

約数ペア:

[(1, 18405621), (3, 6135207), (9, 2045069), (13, 1415817), (39, 471939), (117, 157313), (169, 108909), (507, 36303), (1521, 12101)]