208992021

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{268973}}^1$

素因数の和:269020

約数の個数: 16

約数和(自身を含む): 327072384

約数和(自身を除く): 118080363

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 268973, 806919, 1882811, 5648433, 9952001, 29856003, 69664007, 208992021]

約数ペア:

[(1, 208992021), (3, 69664007), (7, 29856003), (21, 9952001), (37, 5648433), (111, 1882811), (259, 806919), (777, 268973)]