21850256

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12763}}^1$

素因数の和:12878

約数の個数: 20

約数和(自身を含む): 42733872

約数和(自身を除く): 20883616

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12763, 25526, 51052, 102104, 204208, 1365641, 2731282, 5462564, 10925128, 21850256]

約数ペア:

[(1, 21850256), (2, 10925128), (4, 5462564), (8, 2731282), (16, 1365641), (107, 204208), (214, 102104), (428, 51052), (856, 25526), (1712, 12763)]