Idealized graphene monolayer is considered neglecting the van der Waals potential of the substrate and the role of the nonmagnetic impurities. The effect of the long-range Coulomb repulsion in an ensemble of Dirac fermions on the formation of the superconducting pairing in a monolayer is studied in the framework of the Kohn-Luttinger mechanism [1]. The electronic structure of graphene is described in the Wannier representation on the hexagonal lattice. The extended Hubbard model (the Shubin-Vonsowsky model) which takes into account the intra- and intersite Coulomb repulsions of electrons has been used. The Cooper instability is established by solving the Bethe-Salpeter integral equation, in which the role of the effective interaction is played by the renormalized scattering amplitude. The renormalized amplitude contains the Kohn-Luttinger polarization contributions up to and including the second-order terms in the Coulomb repulsion. The superconductive phase diagram for the idealized graphene monolayer is constructed and it is shown that the Kohn-Luttinger renormalizations and the intersite Coulomb repulsion significantly affect the interplay between the superconducting phases with f- and d+id-wave symmetries of the order parameter [2].