20787508

素因数分解:

$2^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{2203}}^1$

素因数の和:2551

約数の個数: 24

約数和(自身を含む): 41717312

約数和(自身を除く): 20929804

約数列:

[1, 2, 4, 7, 14, 28, 337, 674, 1348, 2203, 2359, 4406, 4718, 8812, 9436, 15421, 30842, 61684, 742411, 1484822, 2969644, 5196877, 10393754, 20787508]

約数ペア:

[(1, 20787508), (2, 10393754), (4, 5196877), (7, 2969644), (14, 1484822), (28, 742411), (337, 61684), (674, 30842), (1348, 15421), (2203, 9436), (2359, 8812), (4406, 4718)]