1991238021

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{1621}}^1\times {\mathrm{3329}}^1$

素因数の和:4997

約数の個数: 24

約数和(自身を含む): 2949087960

約数和(自身を除く): 957849939

約数列:

[1, 3, 9, 41, 123, 369, 1621, 3329, 4863, 9987, 14589, 29961, 66461, 136489, 199383, 409467, 598149, 1228401, 5396309, 16188927, 48566781, 221248669, 663746007, 1991238021]

約数ペア:

[(1, 1991238021), (3, 663746007), (9, 221248669), (41, 48566781), (123, 16188927), (369, 5396309), (1621, 1228401), (3329, 598149), (4863, 409467), (9987, 199383), (14589, 136489), (29961, 66461)]