18182871

素因数分解:

$3^2\times 7^2\times {\mathrm{41231}}^1$

素因数の和:41251

約数の個数: 18

約数和(自身を含む): 30552912

約数和(自身を除く): 12370041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 41231, 123693, 288617, 371079, 865851, 2020319, 2597553, 6060957, 18182871]

約数ペア:

[(1, 18182871), (3, 6060957), (7, 2597553), (9, 2020319), (21, 865851), (49, 371079), (63, 288617), (147, 123693), (441, 41231)]