19912053

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22051}}^1$

素因数の和:22104

約数の個数: 16

約数和(自身を含む): 31049216

約数和(自身を除く): 11137163

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22051, 66153, 154357, 463071, 948193, 2844579, 6637351, 19912053]

約数ペア:

[(1, 19912053), (3, 6637351), (7, 2844579), (21, 948193), (43, 463071), (129, 154357), (301, 66153), (903, 22051)]