19901434

素因数分解:

$2^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{4027}}^1$

素因数の和:4389

約数の個数: 16

約数和(自身を含む): 34221888

約数和(自身を除く): 14320454

約数列:

[1, 2, 7, 14, 353, 706, 2471, 4027, 4942, 8054, 28189, 56378, 1421531, 2843062, 9950717, 19901434]

約数ペア:

[(1, 19901434), (2, 9950717), (7, 2843062), (14, 1421531), (353, 56378), (706, 28189), (2471, 8054), (4027, 4942)]