20525372

素因数分解:

$2^2\times 7^1\times {\mathrm{661}}^1\times {\mathrm{1109}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 41149920

約数和(自身を除く): 20624548

約数列:

[1, 2, 4, 7, 14, 28, 661, 1109, 1322, 2218, 2644, 4436, 4627, 7763, 9254, 15526, 18508, 31052, 733049, 1466098, 2932196, 5131343, 10262686, 20525372]

約数ペア:

[(1, 20525372), (2, 10262686), (4, 5131343), (7, 2932196), (14, 1466098), (28, 733049), (661, 31052), (1109, 18508), (1322, 15526), (2218, 9254), (2644, 7763), (4436, 4627)]