19990467

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3823}}^1$

素因数の和:3919

約数の個数: 24

約数和(自身を含む): 33406464

約数和(自身を除く): 13415997

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 3823, 5229, 11469, 26761, 34407, 80283, 240849, 317309, 951927, 2221163, 2855781, 6663489, 19990467]

約数ペア:

[(1, 19990467), (3, 6663489), (7, 2855781), (9, 2221163), (21, 951927), (63, 317309), (83, 240849), (249, 80283), (581, 34407), (747, 26761), (1743, 11469), (3823, 5229)]