17921385

素因数分解:

$3^3\times 5^1\times {\mathrm{132751}}^1$

素因数の和:132765

約数の個数: 16

約数和(自身を含む): 31860480

約数和(自身を除く): 13939095

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 132751, 398253, 663755, 1194759, 1991265, 3584277, 5973795, 17921385]

約数ペア:

[(1, 17921385), (3, 5973795), (5, 3584277), (9, 1991265), (15, 1194759), (27, 663755), (45, 398253), (135, 132751)]