20651912

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 39761280

約数和(自身を除く): 19109368

約数列:

[1, 2, 4, 8, 71, 103, 142, 206, 284, 353, 412, 568, 706, 824, 1412, 2824, 7313, 14626, 25063, 29252, 36359, 50126, 58504, 72718, 100252, 145436, 200504, 290872, 2581489, 5162978, 10325956, 20651912]

約数ペア:

[(1, 20651912), (2, 10325956), (4, 5162978), (8, 2581489), (71, 290872), (103, 200504), (142, 145436), (206, 100252), (284, 72718), (353, 58504), (412, 50126), (568, 36359), (706, 29252), (824, 25063), (1412, 14626), (2824, 7313)]