208057619

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2003}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 277032960

約数和(自身を除く): 68975341

約数列:

[1, 7, 11, 19, 71, 77, 133, 209, 497, 781, 1349, 1463, 2003, 5467, 9443, 14021, 14839, 22033, 38057, 103873, 142213, 154231, 266399, 418627, 995491, 1564343, 2702047, 2930389, 10950401, 18914329, 29722517, 208057619]

約数ペア:

[(1, 208057619), (7, 29722517), (11, 18914329), (19, 10950401), (71, 2930389), (77, 2702047), (133, 1564343), (209, 995491), (497, 418627), (781, 266399), (1349, 154231), (1463, 142213), (2003, 103873), (5467, 38057), (9443, 22033), (14021, 14839)]