Question

नंबर दो नंबर दो ई गेट आफ्टर मल्टीप्लाई टू नंबर इज कॉल्ड द डेट शीट​

Answer 1

Step-by-step explanation:

The sum of divisors of a number, excluding the number itself, is called its aliquot sum, so a perfect number is one that is equal to its aliquot sum. Equivalently, a perfect number is a number that is half the sum of all of its positive divisors including itself; in symbols, σ1(n) = 2n where σ1 is the sum-of-divisors function. For instance, 28 is perfect as 1 + 2 + 4 + 7 + 14 + 28 = 56 = 2 × 28.