20939854

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21767}}^1$

素因数の和:21819

約数の個数: 16

約数和(自身を含む): 34741728

約数和(自身を除く): 13801874

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 21767, 43534, 282971, 565942, 805379, 1610758, 10469927, 20939854]

約数ペア:

[(1, 20939854), (2, 10469927), (13, 1610758), (26, 805379), (37, 565942), (74, 282971), (481, 43534), (962, 21767)]