20717870

素因数分解:

$2^1\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{1949}}^1$

素因数の和:3019

約数の個数: 16

約数和(自身を含む): 37346400

約数和(自身を除く): 16628530

約数列:

[1, 2, 5, 10, 1063, 1949, 2126, 3898, 5315, 9745, 10630, 19490, 2071787, 4143574, 10358935, 20717870]

約数ペア:

[(1, 20717870), (2, 10358935), (5, 4143574), (10, 2071787), (1063, 19490), (1949, 10630), (2126, 9745), (3898, 5315)]