20990224315

素因数分解:

$5^1\times {\mathrm{421}}^1\times {\mathrm{9971603}}^1$

素因数の和:9972029

約数の個数: 8

約数和(自身を含む): 25248101328

約数和(自身を除く): 4257877013

約数列:

[1, 5, 421, 2105, 9971603, 49858015, 4198044863, 20990224315]

約数ペア:

[(1, 20990224315), (5, 4198044863), (421, 49858015), (2105, 9971603)]