20642709

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9413}}^1$

素因数の和:9476

約数の個数: 16

約数和(自身を含む): 29823552

約数和(自身を除く): 9180843

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9413, 28239, 160021, 404759, 480063, 1214277, 6880903, 20642709]

約数ペア:

[(1, 20642709), (3, 6880903), (17, 1214277), (43, 480063), (51, 404759), (129, 160021), (731, 28239), (2193, 9413)]