688666

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1361}}^1$

素因数の和:1397

約数の個数: 16

約数和(自身を含む): 1176768

約数和(自身を除く): 488102

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 1361, 2722, 14971, 29942, 31303, 62606, 344333, 688666]

約数ペア:

[(1, 688666), (2, 344333), (11, 62606), (22, 31303), (23, 29942), (46, 14971), (253, 2722), (506, 1361)]