28639376

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{41627}}^1$

素因数の和:41678

約数の個数: 20

約数和(自身を含む): 56780592

約数和(自身を除く): 28141216

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 41627, 83254, 166508, 333016, 666032, 1789961, 3579922, 7159844, 14319688, 28639376]

約数ペア:

[(1, 28639376), (2, 14319688), (4, 7159844), (8, 3579922), (16, 1789961), (43, 666032), (86, 333016), (172, 166508), (344, 83254), (688, 41627)]