21479040

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1$

素因数の和:152

約数の個数: 256

約数和(自身を含む): 83721600

約数和(自身を除く): 62242560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 108, 110, 113, 120, 128, 132, 135, 144, 160, 165, 176, 180, 192, 198, 216, 220, 226, 240, 264, 270, 288, 297, 320, 330, 339, 352, 360, 384, 396, 432, 440, 452, 480, 495, 528, 540, 565, 576, 594, 640, 660, 678, 704, 720, 792, 864, 880, 904, 960, 990, 1017, 1056, 1080, 1130, 1152, 1188, 1243, 1320, 1356, 1408, 1440, 1485, 1584, 1695, 1728, 1760, 1808, 1920, 1980, 2034, 2112, 2160, 2260, 2376, 2486, 2640, 2712, 2880, 2970, 3051, 3168, 3390, 3456, 3520, 3616, 3729, 3960, 4068, 4224, 4320, 4520, 4752, 4972, 5085, 5280, 5424, 5760, 5940, 6102, 6215, 6336, 6780, 7040, 7232, 7458, 7920, 8136, 8640, 9040, 9504, 9944, 10170, 10560, 10848, 11187, 11880, 12204, 12430, 12672, 13560, 14464, 14916, 15255, 15840, 16272, 17280, 18080, 18645, 19008, 19888, 20340, 21120, 21696, 22374, 23760, 24408, 24860, 27120, 29832, 30510, 31680, 32544, 33561, 36160, 37290, 38016, 39776, 40680, 43392, 44748, 47520, 48816, 49720, 54240, 55935, 59664, 61020, 63360, 65088, 67122, 72320, 74580, 79552, 81360, 89496, 95040, 97632, 99440, 108480, 111870, 119328, 122040, 130176, 134244, 149160, 159104, 162720, 167805, 178992, 190080, 195264, 198880, 216960, 223740, 238656, 244080, 268488, 298320, 325440, 335610, 357984, 390528, 397760, 447480, 477312, 488160, 536976, 596640, 650880, 671220, 715968, 795520, 894960, 976320, 1073952, 1193280, 1342440, 1431936, 1789920, 1952640, 2147904, 2386560, 2684880, 3579840, 4295808, 5369760, 7159680, 10739520, 21479040]

約数ペア:

[(1, 21479040), (2, 10739520), (3, 7159680), (4, 5369760), (5, 4295808), (6, 3579840), (8, 2684880), (9, 2386560), (10, 2147904), (11, 1952640), (12, 1789920), (15, 1431936), (16, 1342440), (18, 1193280), (20, 1073952), (22, 976320), (24, 894960), (27, 795520), (30, 715968), (32, 671220), (33, 650880), (36, 596640), (40, 536976), (44, 488160), (45, 477312), (48, 447480), (54, 397760), (55, 390528), (60, 357984), (64, 335610), (66, 325440), (72, 298320), (80, 268488), (88, 244080), (90, 238656), (96, 223740), (99, 216960), (108, 198880), (110, 195264), (113, 190080), (120, 178992), (128, 167805), (132, 162720), (135, 159104), (144, 149160), (160, 134244), (165, 130176), (176, 122040), (180, 119328), (192, 111870), (198, 108480), (216, 99440), (220, 97632), (226, 95040), (240, 89496), (264, 81360), (270, 79552), (288, 74580), (297, 72320), (320, 67122), (330, 65088), (339, 63360), (352, 61020), (360, 59664), (384, 55935), (396, 54240), (432, 49720), (440, 48816), (452, 47520), (480, 44748), (495, 43392), (528, 40680), (540, 39776), (565, 38016), (576, 37290), (594, 36160), (640, 33561), (660, 32544), (678, 31680), (704, 30510), (720, 29832), (792, 27120), (864, 24860), (880, 24408), (904, 23760), (960, 22374), (990, 21696), (1017, 21120), (1056, 20340), (1080, 19888), (1130, 19008), (1152, 18645), (1188, 18080), (1243, 17280), (1320, 16272), (1356, 15840), (1408, 15255), (1440, 14916), (1485, 14464), (1584, 13560), (1695, 12672), (1728, 12430), (1760, 12204), (1808, 11880), (1920, 11187), (1980, 10848), (2034, 10560), (2112, 10170), (2160, 9944), (2260, 9504), (2376, 9040), (2486, 8640), (2640, 8136), (2712, 7920), (2880, 7458), (2970, 7232), (3051, 7040), (3168, 6780), (3390, 6336), (3456, 6215), (3520, 6102), (3616, 5940), (3729, 5760), (3960, 5424), (4068, 5280), (4224, 5085), (4320, 4972), (4520, 4752)]