21051360

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1$

素因数の和:478

約数の個数: 192

約数和(自身を含む): 80559360

約数和(自身を除く): 59508000

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, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 165, 176, 180, 198, 216, 220, 240, 264, 270, 288, 297, 330, 352, 360, 396, 432, 440, 443, 480, 495, 528, 540, 594, 660, 720, 792, 864, 880, 886, 990, 1056, 1080, 1188, 1320, 1329, 1440, 1485, 1584, 1760, 1772, 1980, 2160, 2215, 2376, 2640, 2658, 2970, 3168, 3544, 3960, 3987, 4320, 4430, 4752, 4873, 5280, 5316, 5940, 6645, 7088, 7920, 7974, 8860, 9504, 9746, 10632, 11880, 11961, 13290, 14176, 14619, 15840, 15948, 17720, 19492, 19935, 21264, 23760, 23922, 24365, 26580, 29238, 31896, 35440, 38984, 39870, 42528, 43857, 47520, 47844, 48730, 53160, 58476, 59805, 63792, 70880, 73095, 77968, 79740, 87714, 95688, 97460, 106320, 116952, 119610, 127584, 131571, 146190, 155936, 159480, 175428, 191376, 194920, 212640, 219285, 233904, 239220, 263142, 292380, 318960, 350856, 382752, 389840, 438570, 467808, 478440, 526284, 584760, 637920, 657855, 701712, 779680, 877140, 956880, 1052568, 1169520, 1315710, 1403424, 1754280, 1913760, 2105136, 2339040, 2631420, 3508560, 4210272, 5262840, 7017120, 10525680, 21051360]

約数ペア:

[(1, 21051360), (2, 10525680), (3, 7017120), (4, 5262840), (5, 4210272), (6, 3508560), (8, 2631420), (9, 2339040), (10, 2105136), (11, 1913760), (12, 1754280), (15, 1403424), (16, 1315710), (18, 1169520), (20, 1052568), (22, 956880), (24, 877140), (27, 779680), (30, 701712), (32, 657855), (33, 637920), (36, 584760), (40, 526284), (44, 478440), (45, 467808), (48, 438570), (54, 389840), (55, 382752), (60, 350856), (66, 318960), (72, 292380), (80, 263142), (88, 239220), (90, 233904), (96, 219285), (99, 212640), (108, 194920), (110, 191376), (120, 175428), (132, 159480), (135, 155936), (144, 146190), (160, 131571), (165, 127584), (176, 119610), (180, 116952), (198, 106320), (216, 97460), (220, 95688), (240, 87714), (264, 79740), (270, 77968), (288, 73095), (297, 70880), (330, 63792), (352, 59805), (360, 58476), (396, 53160), (432, 48730), (440, 47844), (443, 47520), (480, 43857), (495, 42528), (528, 39870), (540, 38984), (594, 35440), (660, 31896), (720, 29238), (792, 26580), (864, 24365), (880, 23922), (886, 23760), (990, 21264), (1056, 19935), (1080, 19492), (1188, 17720), (1320, 15948), (1329, 15840), (1440, 14619), (1485, 14176), (1584, 13290), (1760, 11961), (1772, 11880), (1980, 10632), (2160, 9746), (2215, 9504), (2376, 8860), (2640, 7974), (2658, 7920), (2970, 7088), (3168, 6645), (3544, 5940), (3960, 5316), (3987, 5280), (4320, 4873), (4430, 4752)]