What is the smallest perfect number?

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A perfect number is a positive integer that is equal to the sum of its proper positive divisors, excluding the number itself. Equivalently, a perfect number is a number that is half the sum of all of its positive divisors (including itself).
Ninjai
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Answers by country

6
28
2
128
answers
flagAustralia
70%
10%
13%
6%
30
flagthe Netherlands
70%
5%
23%
0%
17
flagPoland
52%
9%
32%
5%
1956
flagthe United States
50%
5%
34%
7%
55
flagSwitzerland
50%
14%
35%
0%
14
flagPakistan
50%
0%
50%
0%
10
flagGermany
36%
6%
52%
3%
153
flagthe United Kingdom
36%
13%
50%
0%
44
flagAustria
32%
11%
50%
5%
34
flagIndia
22%
14%
54%
6%
61