19904073

素因数分解:

$3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{3373}}^1$

素因数の和:3664

約数の個数: 16

約数和(自身を含む): 30446976

約数和(自身を除く): 10542903

約数列:

[1, 3, 7, 21, 281, 843, 1967, 3373, 5901, 10119, 23611, 70833, 947813, 2843439, 6634691, 19904073]

約数ペア:

[(1, 19904073), (3, 6634691), (7, 2843439), (21, 947813), (281, 70833), (843, 23611), (1967, 10119), (3373, 5901)]