%0 Journal Article %T Sum of divisors of Fibonacci numbers %A Sergei V. Konyagin %A Florian Luca %A Pantelimon St£¿nic£¿ %J Uniform Distribution Theory %D 2009 %I Mathematical Institute of the Slovak Academy of Sciences %X In this note, we prove an estimate on the count of Fibonacci numbers whose sum of divisors is also a Fibonacci number. As a corollary, we find that the series of reciprocals of indices of such Fibonacci numbers is convergent. %K Fibonacci number %K sum of divisors. %U http://www.boku.ac.at/MATH/udt/vol04/no1/KLS09-1.pdf