abundant
abundant since sum of divisors is 16256
perfect
18 is abundant
It's deficient
No, 12 is not a perfect number. It is abundant.
abundant
abundant
abundant since sum of divisors is 16256
perfect
18 is abundant
It's deficient
No 18 is not. It is a abundant number.
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Yes, this is well known. All integral multiples of any perfect, or abundant number must be an abundant number.
deficient
It is deficient.