20684204

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{2269}}^1$

素因数の和:2369

約数の個数: 24

約数和(自身を含む): 37754640

約数和(自身を除く): 17070436

約数列:

[1, 2, 4, 43, 53, 86, 106, 172, 212, 2269, 2279, 4538, 4558, 9076, 9116, 97567, 120257, 195134, 240514, 390268, 481028, 5171051, 10342102, 20684204]

約数ペア:

[(1, 20684204), (2, 10342102), (4, 5171051), (43, 481028), (53, 390268), (86, 240514), (106, 195134), (172, 120257), (212, 97567), (2269, 9116), (2279, 9076), (4538, 4558)]