81990293

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{24763}}^1$

素因数の和:24824

約数の個数: 16

約数和(自身を含む): 104603136

約数和(自身を除く): 22612843

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 24763, 173341, 272393, 1064809, 1906751, 7453663, 11712899, 81990293]

約数ペア:

[(1, 81990293), (7, 11712899), (11, 7453663), (43, 1906751), (77, 1064809), (301, 272393), (473, 173341), (3311, 24763)]