21473340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:132

約数の個数: 192

約数和(自身を含む): 74511360

約数和(自身を除く): 53038020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 41, 42, 43, 58, 60, 70, 82, 84, 86, 87, 105, 116, 123, 129, 140, 145, 164, 172, 174, 203, 205, 210, 215, 246, 258, 287, 290, 301, 348, 406, 410, 420, 430, 435, 492, 516, 574, 580, 602, 609, 615, 645, 812, 820, 860, 861, 870, 903, 1015, 1148, 1189, 1204, 1218, 1230, 1247, 1290, 1435, 1505, 1722, 1740, 1763, 1806, 2030, 2378, 2436, 2460, 2494, 2580, 2870, 3010, 3045, 3444, 3526, 3567, 3612, 3741, 4060, 4305, 4515, 4756, 4988, 5289, 5740, 5945, 6020, 6090, 6235, 7052, 7134, 7482, 8323, 8610, 8729, 8815, 9030, 10578, 11890, 12180, 12341, 12470, 14268, 14964, 16646, 17220, 17458, 17630, 17835, 18060, 18705, 21156, 23780, 24682, 24940, 24969, 26187, 26445, 33292, 34916, 35260, 35670, 37023, 37410, 41615, 43645, 49364, 49938, 51127, 52374, 52890, 61705, 71340, 74046, 74820, 83230, 87290, 99876, 102254, 104748, 105780, 123410, 124845, 130935, 148092, 153381, 166460, 174580, 185115, 204508, 246820, 249690, 255635, 261870, 306762, 357889, 370230, 499380, 511270, 523740, 613524, 715778, 740460, 766905, 1022540, 1073667, 1431556, 1533810, 1789445, 2147334, 3067620, 3578890, 4294668, 5368335, 7157780, 10736670, 21473340]

約数ペア:

[(1, 21473340), (2, 10736670), (3, 7157780), (4, 5368335), (5, 4294668), (6, 3578890), (7, 3067620), (10, 2147334), (12, 1789445), (14, 1533810), (15, 1431556), (20, 1073667), (21, 1022540), (28, 766905), (29, 740460), (30, 715778), (35, 613524), (41, 523740), (42, 511270), (43, 499380), (58, 370230), (60, 357889), (70, 306762), (82, 261870), (84, 255635), (86, 249690), (87, 246820), (105, 204508), (116, 185115), (123, 174580), (129, 166460), (140, 153381), (145, 148092), (164, 130935), (172, 124845), (174, 123410), (203, 105780), (205, 104748), (210, 102254), (215, 99876), (246, 87290), (258, 83230), (287, 74820), (290, 74046), (301, 71340), (348, 61705), (406, 52890), (410, 52374), (420, 51127), (430, 49938), (435, 49364), (492, 43645), (516, 41615), (574, 37410), (580, 37023), (602, 35670), (609, 35260), (615, 34916), (645, 33292), (812, 26445), (820, 26187), (860, 24969), (861, 24940), (870, 24682), (903, 23780), (1015, 21156), (1148, 18705), (1189, 18060), (1204, 17835), (1218, 17630), (1230, 17458), (1247, 17220), (1290, 16646), (1435, 14964), (1505, 14268), (1722, 12470), (1740, 12341), (1763, 12180), (1806, 11890), (2030, 10578), (2378, 9030), (2436, 8815), (2460, 8729), (2494, 8610), (2580, 8323), (2870, 7482), (3010, 7134), (3045, 7052), (3444, 6235), (3526, 6090), (3567, 6020), (3612, 5945), (3741, 5740), (4060, 5289), (4305, 4988), (4515, 4756)]