20501392

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18047}}^1$

素因数の和:18126

約数の個数: 20

約数和(自身を含む): 40283136

約数和(自身を除く): 19781744

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18047, 36094, 72188, 144376, 288752, 1281337, 2562674, 5125348, 10250696, 20501392]

約数ペア:

[(1, 20501392), (2, 10250696), (4, 5125348), (8, 2562674), (16, 1281337), (71, 288752), (142, 144376), (284, 72188), (568, 36094), (1136, 18047)]