20887906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21713}}^1$

素因数の和:21765

約数の個数: 16

約数和(自身を含む): 34655544

約数和(自身を除く): 13767638

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 21713, 43426, 282269, 564538, 803381, 1606762, 10443953, 20887906]

約数ペア:

[(1, 20887906), (2, 10443953), (13, 1606762), (26, 803381), (37, 564538), (74, 282269), (481, 43426), (962, 21713)]