21241920

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:165

約数の個数: 224

約数和(自身を含む): 80467200

約数和(自身を除く): 59225280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 32, 35, 40, 42, 48, 56, 58, 60, 64, 70, 80, 84, 87, 96, 105, 109, 112, 116, 120, 140, 145, 160, 168, 174, 192, 203, 210, 218, 224, 232, 240, 280, 290, 320, 327, 336, 348, 406, 420, 435, 436, 448, 464, 480, 545, 560, 580, 609, 654, 672, 696, 763, 812, 840, 870, 872, 928, 960, 1015, 1090, 1120, 1160, 1218, 1308, 1344, 1392, 1526, 1624, 1635, 1680, 1740, 1744, 1856, 2030, 2180, 2240, 2289, 2320, 2436, 2616, 2784, 3045, 3052, 3161, 3248, 3270, 3360, 3480, 3488, 3815, 4060, 4360, 4578, 4640, 4872, 5232, 5568, 6090, 6104, 6322, 6496, 6540, 6720, 6960, 6976, 7630, 8120, 8720, 9156, 9280, 9483, 9744, 10464, 11445, 12180, 12208, 12644, 12992, 13080, 13920, 15260, 15805, 16240, 17440, 18312, 18966, 19488, 20928, 22127, 22890, 24360, 24416, 25288, 26160, 27840, 30520, 31610, 32480, 34880, 36624, 37932, 38976, 44254, 45780, 47415, 48720, 48832, 50576, 52320, 61040, 63220, 64960, 66381, 73248, 75864, 88508, 91560, 94830, 97440, 101152, 104640, 110635, 122080, 126440, 132762, 146496, 151728, 177016, 183120, 189660, 194880, 202304, 221270, 244160, 252880, 265524, 303456, 331905, 354032, 366240, 379320, 442540, 505760, 531048, 606912, 663810, 708064, 732480, 758640, 885080, 1011520, 1062096, 1327620, 1416128, 1517280, 1770160, 2124192, 2655240, 3034560, 3540320, 4248384, 5310480, 7080640, 10620960, 21241920]

約数ペア:

[(1, 21241920), (2, 10620960), (3, 7080640), (4, 5310480), (5, 4248384), (6, 3540320), (7, 3034560), (8, 2655240), (10, 2124192), (12, 1770160), (14, 1517280), (15, 1416128), (16, 1327620), (20, 1062096), (21, 1011520), (24, 885080), (28, 758640), (29, 732480), (30, 708064), (32, 663810), (35, 606912), (40, 531048), (42, 505760), (48, 442540), (56, 379320), (58, 366240), (60, 354032), (64, 331905), (70, 303456), (80, 265524), (84, 252880), (87, 244160), (96, 221270), (105, 202304), (109, 194880), (112, 189660), (116, 183120), (120, 177016), (140, 151728), (145, 146496), (160, 132762), (168, 126440), (174, 122080), (192, 110635), (203, 104640), (210, 101152), (218, 97440), (224, 94830), (232, 91560), (240, 88508), (280, 75864), (290, 73248), (320, 66381), (327, 64960), (336, 63220), (348, 61040), (406, 52320), (420, 50576), (435, 48832), (436, 48720), (448, 47415), (464, 45780), (480, 44254), (545, 38976), (560, 37932), (580, 36624), (609, 34880), (654, 32480), (672, 31610), (696, 30520), (763, 27840), (812, 26160), (840, 25288), (870, 24416), (872, 24360), (928, 22890), (960, 22127), (1015, 20928), (1090, 19488), (1120, 18966), (1160, 18312), (1218, 17440), (1308, 16240), (1344, 15805), (1392, 15260), (1526, 13920), (1624, 13080), (1635, 12992), (1680, 12644), (1740, 12208), (1744, 12180), (1856, 11445), (2030, 10464), (2180, 9744), (2240, 9483), (2289, 9280), (2320, 9156), (2436, 8720), (2616, 8120), (2784, 7630), (3045, 6976), (3052, 6960), (3161, 6720), (3248, 6540), (3270, 6496), (3360, 6322), (3480, 6104), (3488, 6090), (3815, 5568), (4060, 5232), (4360, 4872), (4578, 4640)]