15581776

素因数分解:

$2^4\times 7^1\times {\mathrm{139123}}^1$

素因数の和:139138

約数の個数: 20

約数和(自身を含む): 34502752

約数和(自身を除く): 18920976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139123, 278246, 556492, 973861, 1112984, 1947722, 2225968, 3895444, 7790888, 15581776]

約数ペア:

[(1, 15581776), (2, 7790888), (4, 3895444), (7, 2225968), (8, 1947722), (14, 1112984), (16, 973861), (28, 556492), (56, 278246), (112, 139123)]