18057123

素因数分解:

$3^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{647}}^1$

素因数の和:1103

約数の個数: 24

約数和(自身を含む): 29922048

約数和(自身を除く): 11864925

約数列:

[1, 3, 7, 9, 21, 63, 443, 647, 1329, 1941, 3101, 3987, 4529, 5823, 9303, 13587, 27909, 40761, 286621, 859863, 2006347, 2579589, 6019041, 18057123]

約数ペア:

[(1, 18057123), (3, 6019041), (7, 2579589), (9, 2006347), (21, 859863), (63, 286621), (443, 40761), (647, 27909), (1329, 13587), (1941, 9303), (3101, 5823), (3987, 4529)]