251121

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:200

約数の個数: 16

約数和(自身を含む): 370944

約数和(自身を除く): 119823

約数列:

[1, 3, 13, 39, 47, 137, 141, 411, 611, 1781, 1833, 5343, 6439, 19317, 83707, 251121]

約数ペア:

[(1, 251121), (3, 83707), (13, 19317), (39, 6439), (47, 5343), (137, 1833), (141, 1781), (411, 611)]