19209175

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 24748416

約数和(自身を除く): 5539241

約数列:

[1, 5, 25, 43, 107, 167, 215, 535, 835, 1075, 2675, 4175, 4601, 7181, 17869, 23005, 35905, 89345, 115025, 179525, 446725, 768367, 3841835, 19209175]

約数ペア:

[(1, 19209175), (5, 3841835), (25, 768367), (43, 446725), (107, 179525), (167, 115025), (215, 89345), (535, 35905), (835, 23005), (1075, 17869), (2675, 7181), (4175, 4601)]