221423727

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{245209}}^1$

素因数の和:245262

約数の個数: 16

約数和(自身を含む): 345255680

約数和(自身を除く): 123831953

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 245209, 735627, 1716463, 5149389, 10543987, 31631961, 73807909, 221423727]

約数ペア:

[(1, 221423727), (3, 73807909), (7, 31631961), (21, 10543987), (43, 5149389), (129, 1716463), (301, 735627), (903, 245209)]