1,1

Table of n, a(n) for n=1..58.

8842 is in the sequence because its divisors are: [1, 2, 4421, 8842] and

1+2+(4*4*2*1)+(8*8*4*2) = 547, a prime.

Sequence in context: A356181 A047348 A186699 * A266257 A115905 A292769

Adjacent sequences: A093856 A093857 A093858 * A093860 A093861 A093862

base,easy,nonn

Jason Earls, May 21 2004

approved