21146884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11177}}^1$

素因数の和:11235

約数の個数: 24

約数和(自身を含む): 41313888

約数和(自身を除く): 20167004

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11177, 22354, 44708, 122947, 245894, 480611, 491788, 961222, 1922444, 5286721, 10573442, 21146884]

約数ペア:

[(1, 21146884), (2, 10573442), (4, 5286721), (11, 1922444), (22, 961222), (43, 491788), (44, 480611), (86, 245894), (172, 122947), (473, 44708), (946, 22354), (1892, 11177)]