There are 17 guilds (including you) between 7 provinces (these 4 and 3 others). 5 of those guilds have adventurers over 15th level in them, and each has no more than 1 party of adventurers of that level. Across 17 guilds varying from 5 to 500 members, there are less than 30 of said pseudogods.
The Adventurer’s Council is made up of 15 guild masters, 1 from each of 15 guilds. Your and 1 other guild are not represented. They collectively have the most ability to reshape the world of any organization out there, but rarely does any group of more than 3 guilds get along.