21677760

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1$

素因数の和:232

約数の個数: 224

約数和(自身を含む): 82783680

約数和(自身を除く): 61105920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 192, 193, 195, 208, 216, 234, 240, 260, 270, 288, 312, 320, 351, 360, 386, 390, 416, 432, 468, 480, 520, 540, 576, 579, 585, 624, 702, 720, 772, 780, 832, 864, 936, 960, 965, 1040, 1080, 1158, 1170, 1248, 1404, 1440, 1544, 1560, 1728, 1737, 1755, 1872, 1930, 2080, 2160, 2316, 2340, 2496, 2509, 2808, 2880, 2895, 3088, 3120, 3474, 3510, 3744, 3860, 4160, 4320, 4632, 4680, 5018, 5211, 5616, 5790, 6176, 6240, 6948, 7020, 7488, 7527, 7720, 8640, 8685, 9264, 9360, 10036, 10422, 11232, 11580, 12352, 12480, 12545, 13896, 14040, 15054, 15440, 17370, 18528, 18720, 20072, 20844, 22464, 22581, 23160, 25090, 26055, 27792, 28080, 30108, 30880, 34740, 37056, 37440, 37635, 40144, 41688, 45162, 46320, 50180, 52110, 55584, 56160, 60216, 61760, 67743, 69480, 75270, 80288, 83376, 90324, 92640, 100360, 104220, 111168, 112320, 112905, 120432, 135486, 138960, 150540, 160576, 166752, 180648, 185280, 200720, 208440, 225810, 240864, 270972, 277920, 301080, 333504, 338715, 361296, 401440, 416880, 451620, 481728, 541944, 555840, 602160, 677430, 722592, 802880, 833760, 903240, 1083888, 1204320, 1354860, 1445184, 1667520, 1806480, 2167776, 2408640, 2709720, 3612960, 4335552, 5419440, 7225920, 10838880, 21677760]

約数ペア:

[(1, 21677760), (2, 10838880), (3, 7225920), (4, 5419440), (5, 4335552), (6, 3612960), (8, 2709720), (9, 2408640), (10, 2167776), (12, 1806480), (13, 1667520), (15, 1445184), (16, 1354860), (18, 1204320), (20, 1083888), (24, 903240), (26, 833760), (27, 802880), (30, 722592), (32, 677430), (36, 602160), (39, 555840), (40, 541944), (45, 481728), (48, 451620), (52, 416880), (54, 401440), (60, 361296), (64, 338715), (65, 333504), (72, 301080), (78, 277920), (80, 270972), (90, 240864), (96, 225810), (104, 208440), (108, 200720), (117, 185280), (120, 180648), (130, 166752), (135, 160576), (144, 150540), (156, 138960), (160, 135486), (180, 120432), (192, 112905), (193, 112320), (195, 111168), (208, 104220), (216, 100360), (234, 92640), (240, 90324), (260, 83376), (270, 80288), (288, 75270), (312, 69480), (320, 67743), (351, 61760), (360, 60216), (386, 56160), (390, 55584), (416, 52110), (432, 50180), (468, 46320), (480, 45162), (520, 41688), (540, 40144), (576, 37635), (579, 37440), (585, 37056), (624, 34740), (702, 30880), (720, 30108), (772, 28080), (780, 27792), (832, 26055), (864, 25090), (936, 23160), (960, 22581), (965, 22464), (1040, 20844), (1080, 20072), (1158, 18720), (1170, 18528), (1248, 17370), (1404, 15440), (1440, 15054), (1544, 14040), (1560, 13896), (1728, 12545), (1737, 12480), (1755, 12352), (1872, 11580), (1930, 11232), (2080, 10422), (2160, 10036), (2316, 9360), (2340, 9264), (2496, 8685), (2509, 8640), (2808, 7720), (2880, 7527), (2895, 7488), (3088, 7020), (3120, 6948), (3474, 6240), (3510, 6176), (3744, 5790), (3860, 5616), (4160, 5211), (4320, 5018), (4632, 4680)]