21040962393

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 31607138304

約数和(自身を除く): 10566175911

約数列:

[1, 3, 11, 33, 71, 83, 213, 249, 257, 421, 771, 781, 913, 1263, 2343, 2739, 2827, 4631, 5893, 8481, 13893, 17679, 18247, 21331, 29891, 34943, 54741, 63993, 64823, 89673, 104829, 108197, 194469, 200717, 234641, 324591, 328801, 384373, 602151, 703923, 986403, 1153119, 1190167, 1514501, 2480953, 3570501, 4543503, 7442859, 7681987, 8980351, 16659511, 23045961, 26941053, 27290483, 49978533, 81871449, 84501857, 98783861, 253505571, 296351583, 637604921, 1912814763, 7013654131, 21040962393]

約数ペア:

[(1, 21040962393), (3, 7013654131), (11, 1912814763), (33, 637604921), (71, 296351583), (83, 253505571), (213, 98783861), (249, 84501857), (257, 81871449), (421, 49978533), (771, 27290483), (781, 26941053), (913, 23045961), (1263, 16659511), (2343, 8980351), (2739, 7681987), (2827, 7442859), (4631, 4543503), (5893, 3570501), (8481, 2480953), (13893, 1514501), (17679, 1190167), (18247, 1153119), (21331, 986403), (29891, 703923), (34943, 602151), (54741, 384373), (63993, 328801), (64823, 324591), (89673, 234641), (104829, 200717), (108197, 194469)]