225515521

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{68111}}^1$

素因数の和:68172

約数の個数: 16

約数和(自身を含む): 287705088

約数和(自身を除く): 62189567

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 68111, 476777, 749221, 2928773, 5244547, 20501411, 32216503, 225515521]

約数ペア:

[(1, 225515521), (7, 32216503), (11, 20501411), (43, 5244547), (77, 2928773), (301, 749221), (473, 476777), (3311, 68111)]