+0  
 
0
86
1
avatar

Compute the sum of all positive integers k for which the number k*1984*2 has exactly 21 positive divisors.

 Jan 13, 2021
 #1
avatar+303 
0

I got this answer from here: https://web2.0calc.com/questions/compute-the-sum-of-all-positive-integers-k-for-which

 

1984 =  2^6 * 31

 

Just multiply 1984 x 31 =(1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 961, 992, 1922, 1984, 3844, 7688, 15376, 30752, 61504) >>Total = 21 divisors

 

 

31 =3 + 1 =4

 

=hihihi

 

😎😎😎

 Jan 13, 2021

20 Online Users

avatar
avatar