20440381

素因数分解:

${\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{1531}}^1$

素因数の和:1636

約数の個数: 12

約数和(自身を含む): 22428480

約数和(自身を除く): 1988099

約数列:

[1, 13, 79, 169, 1027, 1531, 13351, 19903, 120949, 258739, 1572337, 20440381]

約数ペア:

[(1, 20440381), (13, 1572337), (79, 258739), (169, 120949), (1027, 19903), (1531, 13351)]