I don't think your calculation is too accurate, some of those multipliers are just out of thin air
Nevertheless, I did Hungary for fun
Hungary = 6057
D=1117 (895-2012 in the Carpathian-basin)
MB=1.67
C=8 without GK, additional 5 with GK - wasn't sure what did you use for other European civs
PC=0.74
CH=24 if only counting the ones which were under hungarian rule for at least a couple hundred years (under modern borders: 8 Hungary, 5 Slovakia, 1 Ukraine, 5 Romania, 5 Croatia)
Additional 16 if you really count AGE - mostly from eastern Austria, Bohemia, Silezia and the Bosnia-Serbia region (
under Matthias Cornivus)
One could even argue that Hungary ruled Poland and a couple other countries in a personal union on several occasions -
most notably under Louis I - but I don't think it's wise to get into personal unions and vassals, it would only mess things up even more. Anyway, if that's the AGE, in that case it would be even more: