21331288

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1087}}^1$

素因数の和:1327

約数の個数: 32

約数和(自身を含む): 43868160

約数和(自身を除く): 22536872

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 223, 446, 892, 1087, 1784, 2174, 2453, 4348, 4906, 8696, 9812, 11957, 19624, 23914, 47828, 95656, 242401, 484802, 969604, 1939208, 2666411, 5332822, 10665644, 21331288]

約数ペア:

[(1, 21331288), (2, 10665644), (4, 5332822), (8, 2666411), (11, 1939208), (22, 969604), (44, 484802), (88, 242401), (223, 95656), (446, 47828), (892, 23914), (1087, 19624), (1784, 11957), (2174, 9812), (2453, 8696), (4348, 4906)]