21435840

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{827}}^1$

素因数の和:856

約数の個数: 140

約数和(自身を含む): 76343256

約数和(自身を除く): 54907416

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, 270, 288, 320, 324, 360, 405, 432, 480, 540, 576, 648, 720, 810, 827, 864, 960, 1080, 1296, 1440, 1620, 1654, 1728, 2160, 2481, 2592, 2880, 3240, 3308, 4135, 4320, 4962, 5184, 6480, 6616, 7443, 8270, 8640, 9924, 12405, 12960, 13232, 14886, 16540, 19848, 22329, 24810, 25920, 26464, 29772, 33080, 37215, 39696, 44658, 49620, 52928, 59544, 66160, 66987, 74430, 79392, 89316, 99240, 111645, 119088, 132320, 133974, 148860, 158784, 178632, 198480, 223290, 238176, 264640, 267948, 297720, 334935, 357264, 396960, 446580, 476352, 535896, 595440, 669870, 714528, 793920, 893160, 1071792, 1190880, 1339740, 1429056, 1786320, 2143584, 2381760, 2679480, 3572640, 4287168, 5358960, 7145280, 10717920, 21435840]

約数ペア:

[(1, 21435840), (2, 10717920), (3, 7145280), (4, 5358960), (5, 4287168), (6, 3572640), (8, 2679480), (9, 2381760), (10, 2143584), (12, 1786320), (15, 1429056), (16, 1339740), (18, 1190880), (20, 1071792), (24, 893160), (27, 793920), (30, 714528), (32, 669870), (36, 595440), (40, 535896), (45, 476352), (48, 446580), (54, 396960), (60, 357264), (64, 334935), (72, 297720), (80, 267948), (81, 264640), (90, 238176), (96, 223290), (108, 198480), (120, 178632), (135, 158784), (144, 148860), (160, 133974), (162, 132320), (180, 119088), (192, 111645), (216, 99240), (240, 89316), (270, 79392), (288, 74430), (320, 66987), (324, 66160), (360, 59544), (405, 52928), (432, 49620), (480, 44658), (540, 39696), (576, 37215), (648, 33080), (720, 29772), (810, 26464), (827, 25920), (864, 24810), (960, 22329), (1080, 19848), (1296, 16540), (1440, 14886), (1620, 13232), (1654, 12960), (1728, 12405), (2160, 9924), (2481, 8640), (2592, 8270), (2880, 7443), (3240, 6616), (3308, 6480), (4135, 5184), (4320, 4962)]