15215721

素因数分解:

$3^1\times {\mathrm{107}}^2\times {\mathrm{443}}^1$

素因数の和:660

約数の個数: 12

約数和(自身を含む): 20525232

約数和(自身を除く): 5309511

約数列:

[1, 3, 107, 321, 443, 1329, 11449, 34347, 47401, 142203, 5071907, 15215721]

約数ペア:

[(1, 15215721), (3, 5071907), (107, 142203), (321, 47401), (443, 34347), (1329, 11449)]