21526736

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:300

約数の個数: 80

約数和(自身を含む): 52818048

約数和(自身を除く): 31291312

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 101, 112, 154, 173, 176, 202, 308, 346, 404, 616, 692, 707, 808, 1111, 1211, 1232, 1384, 1414, 1616, 1903, 2222, 2422, 2768, 2828, 3806, 4444, 4844, 5656, 7612, 7777, 8888, 9688, 11312, 13321, 15224, 15554, 17473, 17776, 19376, 26642, 30448, 31108, 34946, 53284, 62216, 69892, 106568, 122311, 124432, 139784, 192203, 213136, 244622, 279568, 384406, 489244, 768812, 978488, 1345421, 1537624, 1956976, 2690842, 3075248, 5381684, 10763368, 21526736]

約数ペア:

[(1, 21526736), (2, 10763368), (4, 5381684), (7, 3075248), (8, 2690842), (11, 1956976), (14, 1537624), (16, 1345421), (22, 978488), (28, 768812), (44, 489244), (56, 384406), (77, 279568), (88, 244622), (101, 213136), (112, 192203), (154, 139784), (173, 124432), (176, 122311), (202, 106568), (308, 69892), (346, 62216), (404, 53284), (616, 34946), (692, 31108), (707, 30448), (808, 26642), (1111, 19376), (1211, 17776), (1232, 17473), (1384, 15554), (1414, 15224), (1616, 13321), (1903, 11312), (2222, 9688), (2422, 8888), (2768, 7777), (2828, 7612), (3806, 5656), (4444, 4844)]