247659986

素因数分解:

$2^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{42019}}^1$

素因数の和:42449

約数の個数: 16

約数和(自身を含む): 425578560

約数和(自身を除く): 177918574

約数列:

[1, 2, 7, 14, 421, 842, 2947, 5894, 42019, 84038, 294133, 588266, 17689999, 35379998, 123829993, 247659986]

約数ペア:

[(1, 247659986), (2, 123829993), (7, 35379998), (14, 17689999), (421, 588266), (842, 294133), (2947, 84038), (5894, 42019)]