20553519

素因数分解:

$3^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{1433}}^1$

素因数の和:2126

約数の個数: 16

約数和(自身を含む): 31387392

約数和(自身を除く): 10833873

約数列:

[1, 3, 7, 21, 683, 1433, 2049, 4299, 4781, 10031, 14343, 30093, 978739, 2936217, 6851173, 20553519]

約数ペア:

[(1, 20553519), (3, 6851173), (7, 2936217), (21, 978739), (683, 30093), (1433, 14343), (2049, 10031), (4299, 4781)]