Abstract:
The elementary method and the analytic method are used to calculate the series ∑+∞n=11(na2(n))s.The indentity ∑+∞n=11(nak(n))s=ζ2(ks)ζ(2ks)×∏p1+11+pks×…×∏p1+1k-2+pks is obtained,where ak(n) is the k-th power complement of any positive integer n, s is a complex number with Re(s)≥1.