21785924

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1871}}^1$

素因数の和:1987

約数の個数: 24

約数和(自身を含む): 39626496

約数和(自身を除く): 17840572

約数列:

[1, 2, 4, 41, 71, 82, 142, 164, 284, 1871, 2911, 3742, 5822, 7484, 11644, 76711, 132841, 153422, 265682, 306844, 531364, 5446481, 10892962, 21785924]

約数ペア:

[(1, 21785924), (2, 10892962), (4, 5446481), (41, 531364), (71, 306844), (82, 265682), (142, 153422), (164, 132841), (284, 76711), (1871, 11644), (2911, 7484), (3742, 5822)]