Ramanujan 1918 paper

Question

Does anybody know where I can find Ramanujan's paper from 1918 titled "On Certain Arithmetical Functions." It is referenced in wikipedia, under the Ramanujan Summation section, but I cannot find a link to it. It is supposed to contain proofs to some interesting identities.

Answer 1

Ramanujan's Collected Papers are available at http://www.imsc.res.in/~rao/ramanujan/collectedindex.html.

The paper you seek is available at http://www.imsc.res.in/~rao/ramanujan/CamUnivCpapers/Cpaper18/page1.htm but it's from 1916 not 1918.

Answer 2

I would suggest Ramanujan's collected works.