19811769

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1979}}^1$

素因数の和:2100

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 7559751

約数列:

[1, 3, 47, 71, 141, 213, 1979, 3337, 5937, 10011, 93013, 140509, 279039, 421527, 6603923, 19811769]

約数ペア:

[(1, 19811769), (3, 6603923), (47, 421527), (71, 279039), (141, 140509), (213, 93013), (1979, 10011), (3337, 5937)]