21084940225

素因数分解:

$5^2\times {\mathrm{431}}^1\times {\mathrm{1956839}}^1$

素因数の和:1957280

約数の個数: 12

約数和(自身を含む): 26206001280

約数和(自身を除く): 5121061055

約数列:

[1, 5, 25, 431, 2155, 10775, 1956839, 9784195, 48920975, 843397609, 4216988045, 21084940225]

約数ペア:

[(1, 21084940225), (5, 4216988045), (25, 843397609), (431, 48920975), (2155, 9784195), (10775, 1956839)]