20874781

素因数分解:

${\mathrm{41}}^1\times {\mathrm{71}}^2\times {\mathrm{101}}^1$

素因数の和:284

約数の個数: 12

約数和(自身を含む): 21904092

約数和(自身を除く): 1029311

約数列:

[1, 41, 71, 101, 2911, 4141, 5041, 7171, 206681, 294011, 509141, 20874781]

約数ペア:

[(1, 20874781), (41, 509141), (71, 294011), (101, 206681), (2911, 7171), (4141, 5041)]