18179217

素因数分解:

$3^2\times 7^1\times {\mathrm{288559}}^1$

素因数の和:288572

約数の個数: 12

約数和(自身を含む): 30010240

約数和(自身を除く): 11831023

約数列:

[1, 3, 7, 9, 21, 63, 288559, 865677, 2019913, 2597031, 6059739, 18179217]

約数ペア:

[(1, 18179217), (3, 6059739), (7, 2597031), (9, 2019913), (21, 865677), (63, 288559)]