21027688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5557}}^1$

素因数の和:5617

約数の個数: 32

約数和(自身を含む): 44019360

約数和(自身を除く): 22991672

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5557, 11114, 22228, 44456, 61127, 122254, 238951, 244508, 477902, 489016, 955804, 1911608, 2628461, 5256922, 10513844, 21027688]

約数ペア:

[(1, 21027688), (2, 10513844), (4, 5256922), (8, 2628461), (11, 1911608), (22, 955804), (43, 489016), (44, 477902), (86, 244508), (88, 238951), (172, 122254), (344, 61127), (473, 44456), (946, 22228), (1892, 11114), (3784, 5557)]