18804877

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 24045336

約数和(自身を除く): 5240459

約数列:

[1, 7, 13, 49, 53, 91, 371, 557, 637, 689, 2597, 3899, 4823, 7241, 27293, 29521, 33761, 50687, 206647, 354809, 383773, 1446529, 2686411, 18804877]

約数ペア:

[(1, 18804877), (7, 2686411), (13, 1446529), (49, 383773), (53, 354809), (91, 206647), (371, 50687), (557, 33761), (637, 29521), (689, 27293), (2597, 7241), (3899, 4823)]