19996208

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65777}}^1$

素因数の和:65804

約数の個数: 20

約数和(自身を含む): 40782360

約数和(自身を除く): 20786152

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65777, 131554, 263108, 526216, 1052432, 1249763, 2499526, 4999052, 9998104, 19996208]

約数ペア:

[(1, 19996208), (2, 9998104), (4, 4999052), (8, 2499526), (16, 1249763), (19, 1052432), (38, 526216), (76, 263108), (152, 131554), (304, 65777)]