18720286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{10141}}^1$

素因数の和:10227

約数の個数: 16

約数和(自身を含む): 30669408

約数和(自身を除く): 11949122

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 10141, 20282, 131833, 263666, 720011, 1440022, 9360143, 18720286]

約数ペア:

[(1, 18720286), (2, 9360143), (13, 1440022), (26, 720011), (71, 263666), (142, 131833), (923, 20282), (1846, 10141)]