19966904

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{35153}}^1$

素因数の和:35230

約数の個数: 16

約数和(自身を含む): 37966320

約数和(自身を除く): 17999416

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 35153, 70306, 140612, 281224, 2495863, 4991726, 9983452, 19966904]

約数ペア:

[(1, 19966904), (2, 9983452), (4, 4991726), (8, 2495863), (71, 281224), (142, 140612), (284, 70306), (568, 35153)]