1605402239

素因数分解:

$7^4\times {\mathrm{31}}^1\times {\mathrm{21569}}^1$

素因数の和:21628

約数の個数: 20

約数和(自身を含む): 1933362240

約数和(自身を除く): 327960001

約数列:

[1, 7, 31, 49, 217, 343, 1519, 2401, 10633, 21569, 74431, 150983, 668639, 1056881, 4680473, 7398167, 32763311, 51787169, 229343177, 1605402239]

約数ペア:

[(1, 1605402239), (7, 229343177), (31, 51787169), (49, 32763311), (217, 7398167), (343, 4680473), (1519, 1056881), (2401, 668639), (10633, 150983), (21569, 74431)]