1991237794

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{223283}}^1$

素因数の和:223319

約数の個数: 32

約数和(自身を含む): 3751171200

約数和(自身を除く): 1759933406

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 343, 637, 686, 1274, 4459, 8918, 223283, 446566, 1562981, 2902679, 3125962, 5805358, 10940867, 20318753, 21881734, 40637506, 76586069, 142231271, 153172138, 284462542, 995618897, 1991237794]

約数ペア:

[(1, 1991237794), (2, 995618897), (7, 284462542), (13, 153172138), (14, 142231271), (26, 76586069), (49, 40637506), (91, 21881734), (98, 20318753), (182, 10940867), (343, 5805358), (637, 3125962), (686, 2902679), (1274, 1562981), (4459, 446566), (8918, 223283)]