21026280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{937}}^1$

素因数の和:979

約数の個数: 128

約数和(自身を含む): 72938880

約数和(自身を除く): 51912600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 935, 937, 1020, 1122, 1320, 1496, 1870, 1874, 2040, 2244, 2805, 2811, 3740, 3748, 4488, 4685, 5610, 5622, 7480, 7496, 9370, 10307, 11220, 11244, 14055, 15929, 18740, 20614, 22440, 22488, 28110, 30921, 31858, 37480, 41228, 47787, 51535, 56220, 61842, 63716, 79645, 82456, 95574, 103070, 112440, 123684, 127432, 154605, 159290, 175219, 191148, 206140, 238935, 247368, 309210, 318580, 350438, 382296, 412280, 477870, 525657, 618420, 637160, 700876, 876095, 955740, 1051314, 1236840, 1401752, 1752190, 1911480, 2102628, 2628285, 3504380, 4205256, 5256570, 7008760, 10513140, 21026280]

約数ペア:

[(1, 21026280), (2, 10513140), (3, 7008760), (4, 5256570), (5, 4205256), (6, 3504380), (8, 2628285), (10, 2102628), (11, 1911480), (12, 1752190), (15, 1401752), (17, 1236840), (20, 1051314), (22, 955740), (24, 876095), (30, 700876), (33, 637160), (34, 618420), (40, 525657), (44, 477870), (51, 412280), (55, 382296), (60, 350438), (66, 318580), (68, 309210), (85, 247368), (88, 238935), (102, 206140), (110, 191148), (120, 175219), (132, 159290), (136, 154605), (165, 127432), (170, 123684), (187, 112440), (204, 103070), (220, 95574), (255, 82456), (264, 79645), (330, 63716), (340, 61842), (374, 56220), (408, 51535), (440, 47787), (510, 41228), (561, 37480), (660, 31858), (680, 30921), (748, 28110), (935, 22488), (937, 22440), (1020, 20614), (1122, 18740), (1320, 15929), (1496, 14055), (1870, 11244), (1874, 11220), (2040, 10307), (2244, 9370), (2805, 7496), (2811, 7480), (3740, 5622), (3748, 5610), (4488, 4685)]