18712547

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1637}}^1$

素因数の和:1738

約数の個数: 16

約数和(自身を含む): 22643712

約数和(自身を除く): 3931165

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1637, 11431, 11459, 37651, 116227, 263557, 813589, 2673221, 18712547]

約数ペア:

[(1, 18712547), (7, 2673221), (23, 813589), (71, 263557), (161, 116227), (497, 37651), (1633, 11459), (1637, 11431)]