28274697

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 20754423

約数列:

[1, 3, 9, 11, 27, 31, 33, 37, 83, 93, 99, 111, 249, 279, 297, 333, 341, 407, 747, 837, 913, 999, 1023, 1147, 1221, 2241, 2573, 2739, 3069, 3071, 3441, 3663, 7719, 8217, 9207, 9213, 10323, 10989, 12617, 23157, 24651, 27639, 28303, 30969, 33781, 37851, 69471, 82917, 84909, 95201, 101343, 113553, 254727, 285603, 304029, 340659, 764181, 856809, 912087, 1047211, 2570427, 3141633, 9424899, 28274697]

約数ペア:

[(1, 28274697), (3, 9424899), (9, 3141633), (11, 2570427), (27, 1047211), (31, 912087), (33, 856809), (37, 764181), (83, 340659), (93, 304029), (99, 285603), (111, 254727), (249, 113553), (279, 101343), (297, 95201), (333, 84909), (341, 82917), (407, 69471), (747, 37851), (837, 33781), (913, 30969), (999, 28303), (1023, 27639), (1147, 24651), (1221, 23157), (2241, 12617), (2573, 10989), (2739, 10323), (3069, 9213), (3071, 9207), (3441, 8217), (3663, 7719)]