21022064

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 50371776

約数和(自身を除く): 29349712

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 61, 68, 112, 119, 122, 136, 181, 238, 244, 272, 362, 427, 476, 488, 724, 854, 952, 976, 1037, 1267, 1448, 1708, 1904, 2074, 2534, 2896, 3077, 3416, 4148, 5068, 6154, 6832, 7259, 8296, 10136, 11041, 12308, 14518, 16592, 20272, 21539, 22082, 24616, 29036, 43078, 44164, 49232, 58072, 77287, 86156, 88328, 116144, 154574, 172312, 176656, 187697, 309148, 344624, 375394, 618296, 750788, 1236592, 1313879, 1501576, 2627758, 3003152, 5255516, 10511032, 21022064]

約数ペア:

[(1, 21022064), (2, 10511032), (4, 5255516), (7, 3003152), (8, 2627758), (14, 1501576), (16, 1313879), (17, 1236592), (28, 750788), (34, 618296), (56, 375394), (61, 344624), (68, 309148), (112, 187697), (119, 176656), (122, 172312), (136, 154574), (181, 116144), (238, 88328), (244, 86156), (272, 77287), (362, 58072), (427, 49232), (476, 44164), (488, 43078), (724, 29036), (854, 24616), (952, 22082), (976, 21539), (1037, 20272), (1267, 16592), (1448, 14518), (1708, 12308), (1904, 11041), (2074, 10136), (2534, 8296), (2896, 7259), (3077, 6832), (3416, 6154), (4148, 5068)]