1399057919

素因数分解:

$7^1\times {\mathrm{541}}^1\times {\mathrm{571}}^1\times {\mathrm{647}}^1$

素因数の和:1766

約数の個数: 16

約数和(自身を含む): 1607164416

約数和(自身を除く): 208106497

約数列:

[1, 7, 541, 571, 647, 3787, 3997, 4529, 308911, 350027, 369437, 2162377, 2450189, 2586059, 199865417, 1399057919]

約数ペア:

[(1, 1399057919), (7, 199865417), (541, 2586059), (571, 2450189), (647, 2162377), (3787, 369437), (3997, 350027), (4529, 308911)]