Yes
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An example - the divisors of 28 are 1 -2 - 4 - 7 - 14 and 28. In other words 1+2+4+7+14 = 28
It isn't a perfect number.A perfect number is a number which is the sum of its proper divisors (including 1, but excluding itself).The divisors of 20 are 1, 2, 4, 5, 10.1 + 2 + 4 + 5 + 10 = 22 => 20 is not a perfect number.An example of a perfect number is 28:The divisors of 28 are 1, 2, 4, 7, 141 + 2 + 4 + 7 + 14 = 28 => 28 is a perfect number.
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
812 is not divisible by 9. The divisors of 812 are 1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, and 812.
numbers 1, 2, 3, 4, 5, 8, 16 are divisors number 16 numbers 1, 2, 3, 4, 5, 6, 10, 20 are divisors number 20 numbers 1, 2, 3, 4, 6, 8, 12, 24 are divisors number 24 numbers 1, 2, 3, 4, 7, 12, 28 are divisors number 28 next number is 32 and divisors are 1, 2, 4, 8, 16, 32