19810878

素因数分解:

$2^1\times 3^1\times {\mathrm{709}}^1\times {\mathrm{4657}}^1$

素因数の和:5371

約数の個数: 16

約数和(自身を含む): 39686160

約数和(自身を除く): 19875282

約数列:

[1, 2, 3, 6, 709, 1418, 2127, 4254, 4657, 9314, 13971, 27942, 3301813, 6603626, 9905439, 19810878]

約数ペア:

[(1, 19810878), (2, 9905439), (3, 6603626), (6, 3301813), (709, 27942), (1418, 13971), (2127, 9314), (4254, 4657)]