18919011

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{8627}}^1$

素因数の和:8690

約数の個数: 16

約数和(自身を含む): 27333504

約数和(自身を除く): 8414493

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 8627, 25881, 146659, 370961, 439977, 1112883, 6306337, 18919011]

約数ペア:

[(1, 18919011), (3, 6306337), (17, 1112883), (43, 439977), (51, 370961), (129, 146659), (731, 25881), (2193, 8627)]