+Amicable numbers are pairs of distinct [natural numbers](/wiki/natural_numbers) where the sum of the proper divisors of each number in the pair equals the other number. The most famous pair is (220, 284), a beautiful example of [number theory](/wiki/number_theory) in harmony.
+## See also
+- [Perfect Numbers](/wiki/perfect_numbers)
+- [Deficient Numbers](/wiki/deficient_numbers)
+- [Abundant Numbers](/wiki/abundant_numbers)
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