18447849

素因数分解:

$3^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{661}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 30568512

約数和(自身を除く): 12120663

約数列:

[1, 3, 7, 9, 21, 63, 443, 661, 1329, 1983, 3101, 3987, 4627, 5949, 9303, 13881, 27909, 41643, 292823, 878469, 2049761, 2635407, 6149283, 18447849]

約数ペア:

[(1, 18447849), (3, 6149283), (7, 2635407), (9, 2049761), (21, 878469), (63, 292823), (443, 41643), (661, 27909), (1329, 13881), (1983, 9303), (3101, 5949), (3987, 4627)]