20905398

素因数分解:

$2^1\times 3^3\times {\mathrm{387137}}^1$

素因数の和:387148

約数の個数: 16

約数和(自身を含む): 46456560

約数和(自身を除く): 25551162

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 387137, 774274, 1161411, 2322822, 3484233, 6968466, 10452699, 20905398]

約数ペア:

[(1, 20905398), (2, 10452699), (3, 6968466), (6, 3484233), (9, 2322822), (18, 1161411), (27, 774274), (54, 387137)]