105 errata (pretty small ones) in a 1000-page book. For highly technical work, I'd say that's not too bad. Looking at the errata for Vol I of TAOCP, there's a lot more for a much shorter work (600 pages).

books that have less errors per page generally do not contain factual information

of course many factual books have less reported errors per page, but that's not at all the same thing