21582960

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1$

素因数の和:495

約数の個数: 160

約数和(自身を含む): 79280640

約数和(自身を除く): 57697680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 35, 40, 42, 48, 56, 58, 60, 70, 80, 84, 87, 105, 112, 116, 120, 140, 145, 168, 174, 203, 210, 232, 240, 280, 290, 336, 348, 406, 420, 435, 443, 464, 560, 580, 609, 696, 812, 840, 870, 886, 1015, 1160, 1218, 1329, 1392, 1624, 1680, 1740, 1772, 2030, 2215, 2320, 2436, 2658, 3045, 3101, 3248, 3480, 3544, 4060, 4430, 4872, 5316, 6090, 6202, 6645, 6960, 7088, 8120, 8860, 9303, 9744, 10632, 12180, 12404, 12847, 13290, 15505, 16240, 17720, 18606, 21264, 24360, 24808, 25694, 26580, 31010, 35440, 37212, 38541, 46515, 48720, 49616, 51388, 53160, 62020, 64235, 74424, 77082, 89929, 93030, 102776, 106320, 124040, 128470, 148848, 154164, 179858, 186060, 192705, 205552, 248080, 256940, 269787, 308328, 359716, 372120, 385410, 449645, 513880, 539574, 616656, 719432, 744240, 770820, 899290, 1027760, 1079148, 1348935, 1438864, 1541640, 1798580, 2158296, 2697870, 3083280, 3597160, 4316592, 5395740, 7194320, 10791480, 21582960]

約数ペア:

[(1, 21582960), (2, 10791480), (3, 7194320), (4, 5395740), (5, 4316592), (6, 3597160), (7, 3083280), (8, 2697870), (10, 2158296), (12, 1798580), (14, 1541640), (15, 1438864), (16, 1348935), (20, 1079148), (21, 1027760), (24, 899290), (28, 770820), (29, 744240), (30, 719432), (35, 616656), (40, 539574), (42, 513880), (48, 449645), (56, 385410), (58, 372120), (60, 359716), (70, 308328), (80, 269787), (84, 256940), (87, 248080), (105, 205552), (112, 192705), (116, 186060), (120, 179858), (140, 154164), (145, 148848), (168, 128470), (174, 124040), (203, 106320), (210, 102776), (232, 93030), (240, 89929), (280, 77082), (290, 74424), (336, 64235), (348, 62020), (406, 53160), (420, 51388), (435, 49616), (443, 48720), (464, 46515), (560, 38541), (580, 37212), (609, 35440), (696, 31010), (812, 26580), (840, 25694), (870, 24808), (886, 24360), (1015, 21264), (1160, 18606), (1218, 17720), (1329, 16240), (1392, 15505), (1624, 13290), (1680, 12847), (1740, 12404), (1772, 12180), (2030, 10632), (2215, 9744), (2320, 9303), (2436, 8860), (2658, 8120), (3045, 7088), (3101, 6960), (3248, 6645), (3480, 6202), (3544, 6090), (4060, 5316), (4430, 4872)]