Divisors Of Number

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137438691328

Perfect Numbers The first seven perfect numbers are: 6, 28, 496, 8128, 33550336, 8589869056, and 137438691328. There are presently 49 known such numbers, which are defined by the fact that the sum of their divisors is twice the number itself. For example 6 has the divisors: 1, 2, 3, 6, which adds up to 12.

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  • Frequently Asked Questions

  • What is a perfect number with divisors?

    For instance, 6 has divisors 1, 2 and 3 (excluding itself), and 1 + 2 + 3 = 6, so 6 is a perfect number. 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 ...

  • How many divisors does 1717 have?

    In mathematics number 1717 is a four-digit number. Number 1717 has 2 prime numbers – 17 and 101. When we multiply these numbers together, we get 1717 as a result. This number has 4 divisors and it is known as an odd composite number.

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