20397609

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{17569}}^1$

素因数の和:17621

約数の個数: 16

約数和(自身を含む): 30923200

約数和(自身を除く): 10525591

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 17569, 52707, 158121, 474363, 755467, 2266401, 6799203, 20397609]

約数ペア:

[(1, 20397609), (3, 6799203), (9, 2266401), (27, 755467), (43, 474363), (129, 158121), (387, 52707), (1161, 17569)]