19945882

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{82421}}^1$

素因数の和:82445

約数の個数: 12

約数和(自身を含む): 32886378

約数和(自身を除く): 12940496

約数列:

[1, 2, 11, 22, 121, 242, 82421, 164842, 906631, 1813262, 9972941, 19945882]

約数ペア:

[(1, 19945882), (2, 9972941), (11, 1813262), (22, 906631), (121, 164842), (242, 82421)]