257770293

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{4523}}^1$

素因数の和:4705

約数の個数: 24

約数和(自身を含む): 380269344

約数和(自身を除く): 122499051

約数列:

[1, 3, 11, 33, 121, 157, 363, 471, 1727, 4523, 5181, 13569, 18997, 49753, 56991, 149259, 547283, 710111, 1641849, 2130333, 7811221, 23433663, 85923431, 257770293]

約数ペア:

[(1, 257770293), (3, 85923431), (11, 23433663), (33, 7811221), (121, 2130333), (157, 1641849), (363, 710111), (471, 547283), (1727, 149259), (4523, 56991), (5181, 49753), (13569, 18997)]