19471978

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:789

約数の個数: 16

約数和(自身を含む): 29700000

約数和(自身を除く): 10228022

約数列:

[1, 2, 109, 179, 218, 358, 499, 998, 19511, 39022, 54391, 89321, 108782, 178642, 9735989, 19471978]

約数ペア:

[(1, 19471978), (2, 9735989), (109, 178642), (179, 108782), (218, 89321), (358, 54391), (499, 39022), (998, 19511)]