19920868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10529}}^1$

素因数の和:10587

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 18998012

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10529, 21058, 42116, 115819, 231638, 452747, 463276, 905494, 1810988, 4980217, 9960434, 19920868]

約数ペア:

[(1, 19920868), (2, 9960434), (4, 4980217), (11, 1810988), (22, 905494), (43, 463276), (44, 452747), (86, 231638), (172, 115819), (473, 42116), (946, 21058), (1892, 10529)]