Alaska is about 73 times bigger than Slovenia.

Slovenia is approximately 20,273 sq km, while Alaska is approximately 1,481,348 sq km, making Alaska 7,207% larger than Slovenia. Meanwhile, the population of Slovenia is ~2.1 million people (1.4 million fewer people live in Alaska).
Tip: This to-scale comparison of Slovenia vs. Alaska uses the Mercator projection, which distorts the size of regions near the poles.