17928945

素因数分解:

$3^4\times 5^1\times {\mathrm{44269}}^1$

素因数の和:44286

約数の個数: 20

約数和(自身を含む): 32140020

約数和(自身を除く): 14211075

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 44269, 132807, 221345, 398421, 664035, 1195263, 1992105, 3585789, 5976315, 17928945]

約数ペア:

[(1, 17928945), (3, 5976315), (5, 3585789), (9, 1992105), (15, 1195263), (27, 664035), (45, 398421), (81, 221345), (135, 132807), (405, 44269)]