21197078

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 37705728

約数和(自身を除く): 16508650

約数列:

[1, 2, 7, 14, 37, 74, 151, 259, 271, 302, 518, 542, 1057, 1897, 2114, 3794, 5587, 10027, 11174, 20054, 39109, 40921, 70189, 78218, 81842, 140378, 286447, 572894, 1514077, 3028154, 10598539, 21197078]

約数ペア:

[(1, 21197078), (2, 10598539), (7, 3028154), (14, 1514077), (37, 572894), (74, 286447), (151, 140378), (259, 81842), (271, 78218), (302, 70189), (518, 40921), (542, 39109), (1057, 20054), (1897, 11174), (2114, 10027), (3794, 5587)]