18390547

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{1109}}^1$

素因数の和:1242

約数の個数: 16

約数和(自身を含む): 22164480

約数和(自身を除く): 3773933

約数列:

[1, 7, 23, 103, 161, 721, 1109, 2369, 7763, 16583, 25507, 114227, 178549, 799589, 2627221, 18390547]

約数ペア:

[(1, 18390547), (7, 2627221), (23, 799589), (103, 178549), (161, 114227), (721, 25507), (1109, 16583), (2369, 7763)]