18519209

素因数分解:

${\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:304

約数の個数: 16

約数和(自身を含む): 19958400

約数和(自身を除く): 1439191

約数列:

[1, 23, 83, 89, 109, 1909, 2047, 2507, 7387, 9047, 9701, 169901, 208081, 223123, 805183, 18519209]

約数ペア:

[(1, 18519209), (23, 805183), (83, 223123), (89, 208081), (109, 169901), (1909, 9701), (2047, 9047), (2507, 7387)]