20745406941

素因数分解:

$3^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{1373959}}^1$

素因数の和:1374688

約数の個数: 16

約数和(自身を含む): 31656038400

約数和(自身を除く): 10910631459

約数列:

[1, 3, 7, 21, 719, 2157, 5033, 15099, 1373959, 4121877, 9617713, 28853139, 987876521, 2963629563, 6915135647, 20745406941]

約数ペア:

[(1, 20745406941), (3, 6915135647), (7, 2963629563), (21, 987876521), (719, 28853139), (2157, 9617713), (5033, 4121877), (15099, 1373959)]