21539520

素因数分解:

$2^6\times 3^5\times 5^1\times {\mathrm{277}}^1$

素因数の和:309

約数の個数: 168

約数和(自身を含む): 77108304

約数和(自身を除く): 55568784

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 243, 270, 277, 288, 320, 324, 360, 405, 432, 480, 486, 540, 554, 576, 648, 720, 810, 831, 864, 960, 972, 1080, 1108, 1215, 1296, 1385, 1440, 1620, 1662, 1728, 1944, 2160, 2216, 2430, 2493, 2592, 2770, 2880, 3240, 3324, 3888, 4155, 4320, 4432, 4860, 4986, 5184, 5540, 6480, 6648, 7479, 7776, 8310, 8640, 8864, 9720, 9972, 11080, 12465, 12960, 13296, 14958, 15552, 16620, 17728, 19440, 19944, 22160, 22437, 24930, 25920, 26592, 29916, 33240, 37395, 38880, 39888, 44320, 44874, 49860, 53184, 59832, 66480, 67311, 74790, 77760, 79776, 88640, 89748, 99720, 112185, 119664, 132960, 134622, 149580, 159552, 179496, 199440, 224370, 239328, 265920, 269244, 299160, 336555, 358992, 398880, 448740, 478656, 538488, 598320, 673110, 717984, 797760, 897480, 1076976, 1196640, 1346220, 1435968, 1794960, 2153952, 2393280, 2692440, 3589920, 4307904, 5384880, 7179840, 10769760, 21539520]

約数ペア:

[(1, 21539520), (2, 10769760), (3, 7179840), (4, 5384880), (5, 4307904), (6, 3589920), (8, 2692440), (9, 2393280), (10, 2153952), (12, 1794960), (15, 1435968), (16, 1346220), (18, 1196640), (20, 1076976), (24, 897480), (27, 797760), (30, 717984), (32, 673110), (36, 598320), (40, 538488), (45, 478656), (48, 448740), (54, 398880), (60, 358992), (64, 336555), (72, 299160), (80, 269244), (81, 265920), (90, 239328), (96, 224370), (108, 199440), (120, 179496), (135, 159552), (144, 149580), (160, 134622), (162, 132960), (180, 119664), (192, 112185), (216, 99720), (240, 89748), (243, 88640), (270, 79776), (277, 77760), (288, 74790), (320, 67311), (324, 66480), (360, 59832), (405, 53184), (432, 49860), (480, 44874), (486, 44320), (540, 39888), (554, 38880), (576, 37395), (648, 33240), (720, 29916), (810, 26592), (831, 25920), (864, 24930), (960, 22437), (972, 22160), (1080, 19944), (1108, 19440), (1215, 17728), (1296, 16620), (1385, 15552), (1440, 14958), (1620, 13296), (1662, 12960), (1728, 12465), (1944, 11080), (2160, 9972), (2216, 9720), (2430, 8864), (2493, 8640), (2592, 8310), (2770, 7776), (2880, 7479), (3240, 6648), (3324, 6480), (3888, 5540), (4155, 5184), (4320, 4986), (4432, 4860)]