Erdős problem 412Let σ1(n)=σ(n)σ_1(n)=σ(n), the sum of divisors function, and σk(n)=σ(σk−1(n))σ_k(n) = σ(σ_{k-1}(n)). Is it true that, for every m,n≥2m, n ≥ 2, there exist some i,ji, j such that σi(m)=σj(n)σ_i(m) = σ_j(n)?WorkspaceContinue locallyOpen sourceSign in to contributeOpen this exact Problem, source revision, and authority Repository in Workbench. This handoff does not clone, switch, upload, or execute anything.FilesErdős problem 4122 retained source recordsCanvaspublic previewSource#412→ResultNone→Checks0