20512272836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42380729}}^1$

素因数の和:42380755

約数の個数: 18

約数和(自身を含む): 39456459630

約数和(自身を除く): 18944186794

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42380729, 84761458, 169522916, 466188019, 932376038, 1864752076, 5128068209, 10256136418, 20512272836]

約数ペア:

[(1, 20512272836), (2, 10256136418), (4, 5128068209), (11, 1864752076), (22, 932376038), (44, 466188019), (121, 169522916), (242, 84761458), (484, 42380729)]