ok i have AsQh on a

Ad 3c 8d 6c 7c

pokerstove says i have 49% equity vs A2s+,Td9d,9d5d,7d6d,7d3d,6d3d,A2o+

where as i counted it out and there are 91 total combos, of which i beat 48 (48/91= 52.7%), 6 that i split with (6/91 = 6.6%) and 37 which beat me (37/91= 40.7).

Why is my equity so low when i am winning over 52% of the time?