21035520

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1$

素因数の和:123

約数の個数: 240

約数和(自身を含む): 80432352

約数和(自身を除く): 59396832

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 83, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 166, 176, 180, 192, 198, 220, 240, 249, 256, 264, 288, 320, 330, 332, 352, 360, 384, 396, 415, 440, 480, 495, 498, 512, 528, 576, 640, 660, 664, 704, 720, 747, 768, 792, 830, 880, 913, 960, 990, 996, 1056, 1152, 1245, 1280, 1320, 1328, 1408, 1440, 1494, 1536, 1584, 1660, 1760, 1826, 1920, 1980, 1992, 2112, 2304, 2490, 2560, 2640, 2656, 2739, 2816, 2880, 2988, 3168, 3320, 3520, 3652, 3735, 3840, 3960, 3984, 4224, 4565, 4608, 4980, 5280, 5312, 5478, 5632, 5760, 5976, 6336, 6640, 7040, 7304, 7470, 7680, 7920, 7968, 8217, 8448, 9130, 9960, 10560, 10624, 10956, 11520, 11952, 12672, 13280, 13695, 14080, 14608, 14940, 15840, 15936, 16434, 16896, 18260, 19920, 21120, 21248, 21912, 23040, 23904, 25344, 26560, 27390, 28160, 29216, 29880, 31680, 31872, 32868, 36520, 39840, 41085, 42240, 42496, 43824, 47808, 50688, 53120, 54780, 58432, 59760, 63360, 63744, 65736, 73040, 79680, 82170, 84480, 87648, 95616, 106240, 109560, 116864, 119520, 126720, 127488, 131472, 146080, 159360, 164340, 175296, 191232, 212480, 219120, 233728, 239040, 253440, 262944, 292160, 318720, 328680, 350592, 382464, 438240, 467456, 478080, 525888, 584320, 637440, 657360, 701184, 876480, 956160, 1051776, 1168640, 1314720, 1402368, 1752960, 1912320, 2103552, 2337280, 2629440, 3505920, 4207104, 5258880, 7011840, 10517760, 21035520]

約数ペア:

[(1, 21035520), (2, 10517760), (3, 7011840), (4, 5258880), (5, 4207104), (6, 3505920), (8, 2629440), (9, 2337280), (10, 2103552), (11, 1912320), (12, 1752960), (15, 1402368), (16, 1314720), (18, 1168640), (20, 1051776), (22, 956160), (24, 876480), (30, 701184), (32, 657360), (33, 637440), (36, 584320), (40, 525888), (44, 478080), (45, 467456), (48, 438240), (55, 382464), (60, 350592), (64, 328680), (66, 318720), (72, 292160), (80, 262944), (83, 253440), (88, 239040), (90, 233728), (96, 219120), (99, 212480), (110, 191232), (120, 175296), (128, 164340), (132, 159360), (144, 146080), (160, 131472), (165, 127488), (166, 126720), (176, 119520), (180, 116864), (192, 109560), (198, 106240), (220, 95616), (240, 87648), (249, 84480), (256, 82170), (264, 79680), (288, 73040), (320, 65736), (330, 63744), (332, 63360), (352, 59760), (360, 58432), (384, 54780), (396, 53120), (415, 50688), (440, 47808), (480, 43824), (495, 42496), (498, 42240), (512, 41085), (528, 39840), (576, 36520), (640, 32868), (660, 31872), (664, 31680), (704, 29880), (720, 29216), (747, 28160), (768, 27390), (792, 26560), (830, 25344), (880, 23904), (913, 23040), (960, 21912), (990, 21248), (996, 21120), (1056, 19920), (1152, 18260), (1245, 16896), (1280, 16434), (1320, 15936), (1328, 15840), (1408, 14940), (1440, 14608), (1494, 14080), (1536, 13695), (1584, 13280), (1660, 12672), (1760, 11952), (1826, 11520), (1920, 10956), (1980, 10624), (1992, 10560), (2112, 9960), (2304, 9130), (2490, 8448), (2560, 8217), (2640, 7968), (2656, 7920), (2739, 7680), (2816, 7470), (2880, 7304), (2988, 7040), (3168, 6640), (3320, 6336), (3520, 5976), (3652, 5760), (3735, 5632), (3840, 5478), (3960, 5312), (3984, 5280), (4224, 4980), (4565, 4608)]