12111211

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 14215104

約数和(自身を除く): 2103893

約数列:

[1, 7, 73, 137, 173, 511, 959, 1211, 10001, 12629, 23701, 70007, 88403, 165907, 1730173, 12111211]

約数ペア:

[(1, 12111211), (7, 1730173), (73, 165907), (137, 88403), (173, 70007), (511, 23701), (959, 12629), (1211, 10001)]