20208181

素因数分解:

$7^1\times {\mathrm{101}}^2\times {\mathrm{283}}^1$

素因数の和:492

約数の個数: 12

約数和(自身を含む): 23408416

約数和(自身を除く): 3200235

約数列:

[1, 7, 101, 283, 707, 1981, 10201, 28583, 71407, 200081, 2886883, 20208181]

約数ペア:

[(1, 20208181), (7, 2886883), (101, 200081), (283, 71407), (707, 28583), (1981, 10201)]