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is this number perfect, abundant, or deficient? · all divisors · aliquot sum
[
number
]
known perfect numbers:
6
28
496
8,128
33,550,336
[
result
]
28 is
PERFECT
Sum of proper divisors = 28 = n
[
divisors (6)
]
all divisors (σ)
56
proper divisors sum (s)
28
1
2
4
7
14
28
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