Sum of divisors of a natural number (N)):
(N) =
P
P2-1
P.
P.-
Example : Find the sum of divisors of 18.
Solution: The standard form of 18 is 21 x 3
(18)
2 ད་པ་
2-1
32-1
3-1
27-
26
= 3 x 13 = 39
2
Verification : The sum of divisors of 18 =1+2+3+6+ 9 + 18 = 39
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Factors of a number is an important sub-topic from number systems. In this article, we will discuss the fundamentals of factors of a number. Almost every competitive examination has 2-3 medium to difficult level questions based on factors of a number. Taking this into consideration, we will discuss the advanced application of this topic, to give you an edge over other candidates.
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Answer:
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