25420213

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2039}}^1$

素因数の和:2196

約数の個数: 16

約数和(自身を含む): 31530240

約数和(自身を除く): 6110027

約数列:

[1, 7, 13, 91, 137, 959, 1781, 2039, 12467, 14273, 26507, 185549, 279343, 1955401, 3631459, 25420213]

約数ペア:

[(1, 25420213), (7, 3631459), (13, 1955401), (91, 279343), (137, 185549), (959, 26507), (1781, 14273), (2039, 12467)]