Falkland Islands (Islas Malvinas) is about 26 times bigger than Andorra.

Andorra is approximately 468 sq km, while Falkland Islands (Islas Malvinas) is approximately 12,173 sq km, making Falkland Islands (Islas Malvinas) 2,501% larger than Andorra. Meanwhile, the population of Andorra is ~85,560 people (82,362 fewer people live in Falkland Islands (Islas Malvinas)).
Tip: This to-scale comparison of Andorra vs. Falkland Islands (Islas Malvinas) uses the Mercator projection, which distorts the size of regions near the poles.