20840488

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{36691}}^1$

素因数の和:36768

約数の個数: 16

約数和(自身を含む): 39627360

約数和(自身を除く): 18786872

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 36691, 73382, 146764, 293528, 2605061, 5210122, 10420244, 20840488]

約数ペア:

[(1, 20840488), (2, 10420244), (4, 5210122), (8, 2605061), (71, 293528), (142, 146764), (284, 73382), (568, 36691)]