21019262

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{7523}}^1$

素因数の和:7663

約数の個数: 16

約数和(自身を含む): 34670592

約数和(自身を除く): 13651330

約数列:

[1, 2, 11, 22, 127, 254, 1397, 2794, 7523, 15046, 82753, 165506, 955421, 1910842, 10509631, 21019262]

約数ペア:

[(1, 21019262), (2, 10509631), (11, 1910842), (22, 955421), (127, 165506), (254, 82753), (1397, 15046), (2794, 7523)]