Luxembourg is 16 times larger than Liechtenstein.
Area: 160 km2 World Factbook
Population: 37,313 (July 2014) World Factbook
Liechtenstein, officially the Principality of Liechtenstein, is a doubly landlocked alpine country and a microstate in Central Europe, bordered by Switzerland to the west and south and by Austria to the east and north. Wikipedia
Area: 2,586 km2 World Factbook
Population: 520,672 (July 2014) World Factbook
Luxembourg, officially the Grand Duchy of Luxembourg, is a landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France to the south. Wikipedia