19729689

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{3931}}^1$

素因数の和:4180

約数の個数: 16

約数和(自身を含む): 30197760

約数和(自身を除く): 10468071

約数列:

[1, 3, 7, 21, 239, 717, 1673, 3931, 5019, 11793, 27517, 82551, 939509, 2818527, 6576563, 19729689]

約数ペア:

[(1, 19729689), (3, 6576563), (7, 2818527), (21, 939509), (239, 82551), (717, 27517), (1673, 11793), (3931, 5019)]