20868659

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{18517}}^1$

素因数の和:18554

約数の個数: 12

約数和(自身を含む): 25332624

約数和(自身を除く): 4463965

約数列:

[1, 7, 23, 49, 161, 1127, 18517, 129619, 425891, 907333, 2981237, 20868659]

約数ペア:

[(1, 20868659), (7, 2981237), (23, 907333), (49, 425891), (161, 129619), (1127, 18517)]