21628656

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:563

約数の個数: 120

約数和(自身を含む): 70928000

約数和(自身を除く): 49299344

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 43, 48, 56, 63, 72, 84, 86, 112, 126, 129, 144, 168, 172, 252, 258, 301, 336, 344, 387, 499, 504, 516, 602, 688, 774, 903, 998, 1008, 1032, 1204, 1497, 1548, 1806, 1996, 2064, 2408, 2709, 2994, 3096, 3493, 3612, 3992, 4491, 4816, 5418, 5988, 6192, 6986, 7224, 7984, 8982, 10479, 10836, 11976, 13972, 14448, 17964, 20958, 21457, 21672, 23952, 27944, 31437, 35928, 41916, 42914, 43344, 55888, 62874, 64371, 71856, 83832, 85828, 125748, 128742, 150199, 167664, 171656, 193113, 251496, 257484, 300398, 343312, 386226, 450597, 502992, 514968, 600796, 772452, 901194, 1029936, 1201592, 1351791, 1544904, 1802388, 2403184, 2703582, 3089808, 3604776, 5407164, 7209552, 10814328, 21628656]

約数ペア:

[(1, 21628656), (2, 10814328), (3, 7209552), (4, 5407164), (6, 3604776), (7, 3089808), (8, 2703582), (9, 2403184), (12, 1802388), (14, 1544904), (16, 1351791), (18, 1201592), (21, 1029936), (24, 901194), (28, 772452), (36, 600796), (42, 514968), (43, 502992), (48, 450597), (56, 386226), (63, 343312), (72, 300398), (84, 257484), (86, 251496), (112, 193113), (126, 171656), (129, 167664), (144, 150199), (168, 128742), (172, 125748), (252, 85828), (258, 83832), (301, 71856), (336, 64371), (344, 62874), (387, 55888), (499, 43344), (504, 42914), (516, 41916), (602, 35928), (688, 31437), (774, 27944), (903, 23952), (998, 21672), (1008, 21457), (1032, 20958), (1204, 17964), (1497, 14448), (1548, 13972), (1806, 11976), (1996, 10836), (2064, 10479), (2408, 8982), (2709, 7984), (2994, 7224), (3096, 6986), (3493, 6192), (3612, 5988), (3992, 5418), (4491, 4816)]