We construct a Riemannian manifold on the integers in which prime numbers emerge as geometric features — specifically, as the minima of a gravitational potential landscape induced by the divisibility structure of the natural numbers. The construction proceeds in two stages: (1) a divisor weight accumulation that identifies primes with 100% precision and recall as zero-weight positions, and (2) a Gaussian gravitational well model centered at detected primes with von Mangoldt weighting. We demonstrate that the spectral content of this manifold, extracted via Fourier analysis in logarithmic space (a discrete Mellin transform), recovers the first 20 nontrivial zeros of the Riemann zeta function with a mean alignment error of 0.121. Statistical significance is established at 5.4 sigma against density-matched null models. No primes are specified as input. No free parameters are tuned. The integers enter; the zeta zeros emerge.