20571002005

素因数分解:

$5^1\times {\mathrm{881}}^1\times {\mathrm{2161}}^2$

素因数の和:5208

約数の個数: 12

約数和(自身を含む): 24724663236

約数和(自身を除く): 4153661231

約数列:

[1, 5, 881, 2161, 4405, 10805, 1903841, 4669921, 9519205, 23349605, 4114200401, 20571002005]

約数ペア:

[(1, 20571002005), (5, 4114200401), (881, 23349605), (2161, 9519205), (4405, 4669921), (10805, 1903841)]