The
Job Spy plugin allows you to export a list of all your series.
I don't know of an easy way to get a series-author list short of doing so on a per-book basis. Create catalog or command-line
calibredb list will show the info but does so per book, iirc. Mind, you could always export to CSV and deduplicate the generated list using OpenOffice, LibreOffice, Excel or similar.
Only way I can think of to get the series-authors list directly is if you open a
copy of metadata.db with
SQLiteBrowser or something and execute a SQL query. Note, emphasis on
copy. You don't want to be messing around with and risk corrupting your actual Calibre metadata.db file.
Code:
SELECT DISTINCT series.name AS series, authors.name AS authors
FROM series, authors, books_authors_link, books_series_link
WHERE books_authors_link.book=books_series_link.book AND authors.id=books_authors_link.author AND series.id=books_series_link.series
ORDER BY authors.name, series.name