21489131521

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4847537}}^1$

素因数の和:4847592

約数の個数: 16

約数和(自身を含む): 26060364288

約数和(自身を除く): 4571232767

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 4847537, 53322907, 63017981, 150273647, 693197791, 1653010117, 1953557411, 21489131521]

約数ペア:

[(1, 21489131521), (11, 1953557411), (13, 1653010117), (31, 693197791), (143, 150273647), (341, 63017981), (403, 53322907), (4433, 4847537)]