851272335

素因数分解:

$3^4\times 5^1\times {\mathrm{2101907}}^1$

素因数の和:2101924

約数の個数: 20

約数和(自身を含む): 1525985208

約数和(自身を除く): 674712873

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2101907, 6305721, 10509535, 18917163, 31528605, 56751489, 94585815, 170254467, 283757445, 851272335]

約数ペア:

[(1, 851272335), (3, 283757445), (5, 170254467), (9, 94585815), (15, 56751489), (27, 31528605), (45, 18917163), (81, 10509535), (135, 6305721), (405, 2101907)]