Cumulative distributions of planetary systems around M dwarfs. Left panels: Cumulative distributions of period ratio of adjacent planets (top) and of the period of the innermost planet of each system (bottom) for the simulated planets of the scenario that include pebble accretion and low gas disk viscosity for a star of 0.1 M_⊙ (blue line) together with the exoplanet sample around star with 0.08 < M_★/M_⊙ < 0.2 (gray line). Middle panels: Analogous distributions, but comparing the simulated planets for a star of 0.3 M_⊙ (red line) with the exoplanet sample around stars with 0.2 < M_★/M_⊙ < 0.4 (gray line). Right panels: Analogous distributions, but comparing the simulated planets from 0.5 M_⊙ (green line) with the exoplanet sample around stars with 0.4 < M_★/M_⊙ < 0.5 (gray line). The shadow areas represent the Poissonian errors of each distribution. The representative mean motion resonances are overplotted (top panels).