20124517

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{523}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 24145920

約数和(自身を除く): 4021403

約数列:

[1, 7, 23, 161, 239, 523, 1673, 3661, 5497, 12029, 38479, 84203, 124997, 874979, 2874931, 20124517]

約数ペア:

[(1, 20124517), (7, 2874931), (23, 874979), (161, 124997), (239, 84203), (523, 38479), (1673, 12029), (3661, 5497)]