20540168

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2311}}^1$

素因数の和:2429

約数の個数: 32

約数和(自身を含む): 42448320

約数和(自身を除く): 21908152

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2222, 2311, 4444, 4622, 8888, 9244, 18488, 25421, 50842, 101684, 203368, 233411, 466822, 933644, 1867288, 2567521, 5135042, 10270084, 20540168]

約数ペア:

[(1, 20540168), (2, 10270084), (4, 5135042), (8, 2567521), (11, 1867288), (22, 933644), (44, 466822), (88, 233411), (101, 203368), (202, 101684), (404, 50842), (808, 25421), (1111, 18488), (2222, 9244), (2311, 8888), (4444, 4622)]