257313639

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{463}}^1\times {\mathrm{1531}}^1$

素因数の和:2019

約数の個数: 24

約数和(自身を含む): 378171136

約数和(自身を除く): 120857497

約数列:

[1, 3, 11, 33, 121, 363, 463, 1389, 1531, 4593, 5093, 15279, 16841, 50523, 56023, 168069, 185251, 555753, 708853, 2126559, 7797383, 23392149, 85771213, 257313639]

約数ペア:

[(1, 257313639), (3, 85771213), (11, 23392149), (33, 7797383), (121, 2126559), (363, 708853), (463, 555753), (1389, 185251), (1531, 168069), (4593, 56023), (5093, 50523), (15279, 16841)]