20509269

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{7867}}^1$

素因数の和:7960

約数の個数: 16

約数和(自身を含む): 30213120

約数和(自身を除く): 9703851

約数列:

[1, 3, 11, 33, 79, 237, 869, 2607, 7867, 23601, 86537, 259611, 621493, 1864479, 6836423, 20509269]

約数ペア:

[(1, 20509269), (3, 6836423), (11, 1864479), (33, 621493), (79, 259611), (237, 86537), (869, 23601), (2607, 7867)]