+A **sociable number** is an integer whose [aliquot sum](/wiki/aliquot_sum) sequence forms a periodic cycle, eventually returning to the original number. These fascinating numbers represent a closed loop in the sum of their proper divisors, also known as an [aliquot cycle](/wiki/aliquot_cycle).
+## See also
+- [Perfect Number](/wiki/perfect_number)
+- [Amicable Number](/wiki/amicable_number)
+- [Aliquot Sequence](/wiki/aliquot_sequence)
... 1 more lines