21682423

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{613}}^1$

素因数の和:814

約数の個数: 16

約数和(自身を含む): 25778176

約数和(自身を除く): 4095753

約数列:

[1, 7, 31, 163, 217, 613, 1141, 4291, 5053, 19003, 35371, 99919, 133021, 699433, 3097489, 21682423]

約数ペア:

[(1, 21682423), (7, 3097489), (31, 699433), (163, 133021), (217, 99919), (613, 35371), (1141, 19003), (4291, 5053)]