20639674

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{19961}}^1$

素因数の和:20021

約数の個数: 16

約数和(自身を含む): 34494336

約数和(自身を除く): 13854662

約数列:

[1, 2, 11, 22, 47, 94, 517, 1034, 19961, 39922, 219571, 439142, 938167, 1876334, 10319837, 20639674]

約数ペア:

[(1, 20639674), (2, 10319837), (11, 1876334), (22, 938167), (47, 439142), (94, 219571), (517, 39922), (1034, 19961)]