21373440

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1$

素因数の和:71

約数の個数: 240

約数和(自身を含む): 78369984

約数和(自身を除く): 56996544

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 23, 24, 30, 32, 33, 40, 44, 46, 48, 55, 60, 64, 66, 69, 80, 88, 92, 96, 110, 115, 120, 121, 128, 132, 138, 160, 165, 176, 184, 192, 220, 230, 240, 242, 253, 256, 264, 276, 320, 330, 345, 352, 363, 368, 384, 440, 460, 480, 484, 506, 512, 528, 552, 605, 640, 660, 690, 704, 726, 736, 759, 768, 880, 920, 960, 968, 1012, 1056, 1104, 1210, 1265, 1280, 1320, 1380, 1408, 1452, 1472, 1518, 1536, 1760, 1815, 1840, 1920, 1936, 2024, 2112, 2208, 2420, 2530, 2560, 2640, 2760, 2783, 2816, 2904, 2944, 3036, 3520, 3630, 3680, 3795, 3840, 3872, 4048, 4224, 4416, 4840, 5060, 5280, 5520, 5566, 5632, 5808, 5888, 6072, 7040, 7260, 7360, 7590, 7680, 7744, 8096, 8349, 8448, 8832, 9680, 10120, 10560, 11040, 11132, 11616, 11776, 12144, 13915, 14080, 14520, 14720, 15180, 15488, 16192, 16698, 16896, 17664, 19360, 20240, 21120, 22080, 22264, 23232, 24288, 27830, 28160, 29040, 29440, 30360, 30976, 32384, 33396, 35328, 38720, 40480, 41745, 42240, 44160, 44528, 46464, 48576, 55660, 58080, 58880, 60720, 61952, 64768, 66792, 77440, 80960, 83490, 84480, 88320, 89056, 92928, 97152, 111320, 116160, 121440, 129536, 133584, 154880, 161920, 166980, 176640, 178112, 185856, 194304, 222640, 232320, 242880, 267168, 309760, 323840, 333960, 356224, 388608, 445280, 464640, 485760, 534336, 647680, 667920, 712448, 890560, 929280, 971520, 1068672, 1335840, 1424896, 1781120, 1943040, 2137344, 2671680, 3562240, 4274688, 5343360, 7124480, 10686720, 21373440]

約数ペア:

[(1, 21373440), (2, 10686720), (3, 7124480), (4, 5343360), (5, 4274688), (6, 3562240), (8, 2671680), (10, 2137344), (11, 1943040), (12, 1781120), (15, 1424896), (16, 1335840), (20, 1068672), (22, 971520), (23, 929280), (24, 890560), (30, 712448), (32, 667920), (33, 647680), (40, 534336), (44, 485760), (46, 464640), (48, 445280), (55, 388608), (60, 356224), (64, 333960), (66, 323840), (69, 309760), (80, 267168), (88, 242880), (92, 232320), (96, 222640), (110, 194304), (115, 185856), (120, 178112), (121, 176640), (128, 166980), (132, 161920), (138, 154880), (160, 133584), (165, 129536), (176, 121440), (184, 116160), (192, 111320), (220, 97152), (230, 92928), (240, 89056), (242, 88320), (253, 84480), (256, 83490), (264, 80960), (276, 77440), (320, 66792), (330, 64768), (345, 61952), (352, 60720), (363, 58880), (368, 58080), (384, 55660), (440, 48576), (460, 46464), (480, 44528), (484, 44160), (506, 42240), (512, 41745), (528, 40480), (552, 38720), (605, 35328), (640, 33396), (660, 32384), (690, 30976), (704, 30360), (726, 29440), (736, 29040), (759, 28160), (768, 27830), (880, 24288), (920, 23232), (960, 22264), (968, 22080), (1012, 21120), (1056, 20240), (1104, 19360), (1210, 17664), (1265, 16896), (1280, 16698), (1320, 16192), (1380, 15488), (1408, 15180), (1452, 14720), (1472, 14520), (1518, 14080), (1536, 13915), (1760, 12144), (1815, 11776), (1840, 11616), (1920, 11132), (1936, 11040), (2024, 10560), (2112, 10120), (2208, 9680), (2420, 8832), (2530, 8448), (2560, 8349), (2640, 8096), (2760, 7744), (2783, 7680), (2816, 7590), (2904, 7360), (2944, 7260), (3036, 7040), (3520, 6072), (3630, 5888), (3680, 5808), (3795, 5632), (3840, 5566), (3872, 5520), (4048, 5280), (4224, 5060), (4416, 4840)]