266979321

素因数分解:

$3^4\times 7^1\times {\mathrm{470863}}^1$

素因数の和:470882

約数の個数: 20

約数和(自身を含む): 455796352

約数和(自身を除く): 188817031

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 470863, 1412589, 3296041, 4237767, 9888123, 12713301, 29664369, 38139903, 88993107, 266979321]

約数ペア:

[(1, 266979321), (3, 88993107), (7, 38139903), (9, 29664369), (21, 12713301), (27, 9888123), (63, 4237767), (81, 3296041), (189, 1412589), (567, 470863)]