20990792

素因数分解:

$2^3\times {\mathrm{353}}^1\times {\mathrm{7433}}^1$

素因数の和:7792

約数の個数: 16

約数和(自身を含む): 39474540

約数和(自身を除く): 18483748

約数列:

[1, 2, 4, 8, 353, 706, 1412, 2824, 7433, 14866, 29732, 59464, 2623849, 5247698, 10495396, 20990792]

約数ペア:

[(1, 20990792), (2, 10495396), (4, 5247698), (8, 2623849), (353, 59464), (706, 29732), (1412, 14866), (2824, 7433)]