81390806

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{56443}}^1$

素因数の和:56555

約数の個数: 16

約数和(自身を含む): 140884224

約数和(自身を除く): 59493418

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 56443, 112886, 395101, 790202, 5813629, 11627258, 40695403, 81390806]

約数ペア:

[(1, 81390806), (2, 40695403), (7, 11627258), (14, 5813629), (103, 790202), (206, 395101), (721, 112886), (1442, 56443)]