Numbers k whose abundance is 18: sigma(k) - 2*k = 18.

A223610

Numbers k whose abundance is 18: sigma(k) - 2*k = 18.

Terms

    a(0) =208a(1) =6976a(2) =8415a(3) =31815a(4) =351351a(5) =2077696a(6) =20487159a(7) =159030135a(8) =536559616a(9) =2586415095a(10) =137433972736

External references