21247322015

素因数分解:

$5^1\times {\mathrm{5443}}^1\times {\mathrm{780721}}^1$

素因数の和:786169

約数の個数: 8

約数和(自身を含む): 25501503408

約数和(自身を除く): 4254181393

約数列:

[1, 5, 5443, 27215, 780721, 3903605, 4249464403, 21247322015]

約数ペア:

[(1, 21247322015), (5, 4249464403), (5443, 3903605), (27215, 780721)]