20187953457

素因数分解:

$3^1\times 7^1\times {\mathrm{2731}}^1\times {\mathrm{352007}}^1$

素因数の和:354748

約数の個数: 16

約数和(自身を含む): 30773947392

約数和(自身を除く): 10585993935

約数列:

[1, 3, 7, 21, 2731, 8193, 19117, 57351, 352007, 1056021, 2464049, 7392147, 961331117, 2883993351, 6729317819, 20187953457]

約数ペア:

[(1, 20187953457), (3, 6729317819), (7, 2883993351), (21, 961331117), (2731, 7392147), (8193, 2464049), (19117, 1056021), (57351, 352007)]