20405721051

素因数分解:

$3^2\times {\mathrm{277}}^1\times {\mathrm{857}}^1\times {\mathrm{9551}}^1$

素因数の和:10691

約数の個数: 24

約数和(自身を含む): 29618956224

約数和(自身を除く): 9213235173

約数列:

[1, 3, 9, 277, 831, 857, 2493, 2571, 7713, 9551, 28653, 85959, 237389, 712167, 2136501, 2645627, 7936881, 8185207, 23810643, 24555621, 73666863, 2267302339, 6801907017, 20405721051]

約数ペア:

[(1, 20405721051), (3, 6801907017), (9, 2267302339), (277, 73666863), (831, 24555621), (857, 23810643), (2493, 8185207), (2571, 7936881), (7713, 2645627), (9551, 2136501), (28653, 712167), (85959, 237389)]