20158476471

素因数分解:

$3^2\times 7^2\times {\mathrm{45710831}}^1$

素因数の和:45710851

約数の個数: 18

約数和(自身を含む): 33871726512

約数和(自身を除く): 13713250041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45710831, 137132493, 319975817, 411397479, 959927451, 2239830719, 2879782353, 6719492157, 20158476471]

約数ペア:

[(1, 20158476471), (3, 6719492157), (7, 2879782353), (9, 2239830719), (21, 959927451), (49, 411397479), (63, 319975817), (147, 137132493), (441, 45710831)]