21508712

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{25127}}^1$

素因数の和:25240

約数の個数: 16

約数和(自身を含む): 40707360

約数和(自身を除く): 19198648

約数列:

[1, 2, 4, 8, 107, 214, 428, 856, 25127, 50254, 100508, 201016, 2688589, 5377178, 10754356, 21508712]

約数ペア:

[(1, 21508712), (2, 10754356), (4, 5377178), (8, 2688589), (107, 201016), (214, 100508), (428, 50254), (856, 25127)]