21091144

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{20759}}^1$

素因数の和:20892

約数の個数: 16

約数和(自身を含む): 39859200

約数和(自身を除く): 18768056

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 20759, 41518, 83036, 166072, 2636393, 5272786, 10545572, 21091144]

約数ペア:

[(1, 21091144), (2, 10545572), (4, 5272786), (8, 2636393), (127, 166072), (254, 83036), (508, 41518), (1016, 20759)]