17221329

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{1987}}^1$

素因数の和:2106

約数の個数: 20

約数和(自身を含む): 25979184

約数和(自身を除く): 8757855

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 1987, 2889, 5961, 8667, 17883, 53649, 160947, 212609, 637827, 1913481, 5740443, 17221329]

約数ペア:

[(1, 17221329), (3, 5740443), (9, 1913481), (27, 637827), (81, 212609), (107, 160947), (321, 53649), (963, 17883), (1987, 8667), (2889, 5961)]