90234781

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{52189}}^1$

素因数の和:52228

約数の個数: 16

約数和(自身を含む): 116905600

約数和(自身を除く): 26670819

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 52189, 365323, 678457, 991591, 4749199, 6941137, 12890683, 90234781]

約数ペア:

[(1, 90234781), (7, 12890683), (13, 6941137), (19, 4749199), (91, 991591), (133, 678457), (247, 365323), (1729, 52189)]