למה 1 לא נחשב מספר משוכלל? הרי המחלק היחיד שלו זה 1, והסכום הוא 1
Why 1 is not considered an elaborate number? After all, its only divisor is 1, and the sum is 1
I think the translation should be 'perfect number'
a positive integer that is equal to the sum of its proper divisors.
The smallest perfect number is 6, which is the sum of 1, 2, and 3. Other perfect numbers are 28, 496, and 8,128.
(copied from Google)