21298244

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11257}}^1$

素因数の和:11315

約数の個数: 24

約数和(自身を含む): 41609568

約数和(自身を除く): 20311324

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11257, 22514, 45028, 123827, 247654, 484051, 495308, 968102, 1936204, 5324561, 10649122, 21298244]

約数ペア:

[(1, 21298244), (2, 10649122), (4, 5324561), (11, 1936204), (22, 968102), (43, 495308), (44, 484051), (86, 247654), (172, 123827), (473, 45028), (946, 22514), (1892, 11257)]