16561027

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 20044800

約数和(自身を除く): 3483773

約数列:

[1, 7, 19, 133, 239, 521, 1673, 3647, 4541, 9899, 31787, 69293, 124519, 871633, 2365861, 16561027]

約数ペア:

[(1, 16561027), (7, 2365861), (19, 871633), (133, 124519), (239, 69293), (521, 31787), (1673, 9899), (3647, 4541)]