21124488

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 192

約数和(自身を含む): 70917120

約数和(自身を除く): 49792632

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 23, 24, 28, 33, 42, 44, 46, 49, 56, 66, 69, 71, 77, 84, 88, 92, 98, 132, 138, 142, 147, 154, 161, 168, 184, 196, 213, 231, 253, 264, 276, 284, 294, 308, 322, 392, 426, 462, 483, 497, 506, 539, 552, 568, 588, 616, 644, 759, 781, 852, 924, 966, 994, 1012, 1078, 1127, 1176, 1288, 1491, 1518, 1562, 1617, 1633, 1704, 1771, 1848, 1932, 1988, 2024, 2156, 2254, 2343, 2982, 3036, 3124, 3234, 3266, 3381, 3479, 3542, 3864, 3976, 4312, 4508, 4686, 4899, 5313, 5467, 5964, 6072, 6248, 6468, 6532, 6762, 6958, 7084, 9016, 9372, 9798, 10437, 10626, 10934, 11431, 11928, 12397, 12936, 13064, 13524, 13916, 14168, 16401, 17963, 18744, 19596, 20874, 21252, 21868, 22862, 24794, 27048, 27832, 32802, 34293, 35926, 37191, 38269, 39192, 41748, 42504, 43736, 45724, 49588, 53889, 65604, 68586, 71852, 74382, 76538, 80017, 83496, 91448, 99176, 107778, 114807, 125741, 131208, 137172, 143704, 148764, 153076, 160034, 215556, 229614, 240051, 251482, 274344, 297528, 306152, 320068, 377223, 431112, 459228, 480102, 502964, 640136, 754446, 880187, 918456, 960204, 1005928, 1508892, 1760374, 1920408, 2640561, 3017784, 3520748, 5281122, 7041496, 10562244, 21124488]

約数ペア:

[(1, 21124488), (2, 10562244), (3, 7041496), (4, 5281122), (6, 3520748), (7, 3017784), (8, 2640561), (11, 1920408), (12, 1760374), (14, 1508892), (21, 1005928), (22, 960204), (23, 918456), (24, 880187), (28, 754446), (33, 640136), (42, 502964), (44, 480102), (46, 459228), (49, 431112), (56, 377223), (66, 320068), (69, 306152), (71, 297528), (77, 274344), (84, 251482), (88, 240051), (92, 229614), (98, 215556), (132, 160034), (138, 153076), (142, 148764), (147, 143704), (154, 137172), (161, 131208), (168, 125741), (184, 114807), (196, 107778), (213, 99176), (231, 91448), (253, 83496), (264, 80017), (276, 76538), (284, 74382), (294, 71852), (308, 68586), (322, 65604), (392, 53889), (426, 49588), (462, 45724), (483, 43736), (497, 42504), (506, 41748), (539, 39192), (552, 38269), (568, 37191), (588, 35926), (616, 34293), (644, 32802), (759, 27832), (781, 27048), (852, 24794), (924, 22862), (966, 21868), (994, 21252), (1012, 20874), (1078, 19596), (1127, 18744), (1176, 17963), (1288, 16401), (1491, 14168), (1518, 13916), (1562, 13524), (1617, 13064), (1633, 12936), (1704, 12397), (1771, 11928), (1848, 11431), (1932, 10934), (1988, 10626), (2024, 10437), (2156, 9798), (2254, 9372), (2343, 9016), (2982, 7084), (3036, 6958), (3124, 6762), (3234, 6532), (3266, 6468), (3381, 6248), (3479, 6072), (3542, 5964), (3864, 5467), (3976, 5313), (4312, 4899), (4508, 4686)]