16988439

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 25595584

約数和(自身を除く): 8607145

約数列:

[1, 3, 13, 37, 39, 61, 111, 183, 193, 481, 579, 793, 1443, 2257, 2379, 2509, 6771, 7141, 7527, 11773, 21423, 29341, 35319, 88023, 92833, 153049, 278499, 435601, 459147, 1306803, 5662813, 16988439]

約数ペア:

[(1, 16988439), (3, 5662813), (13, 1306803), (37, 459147), (39, 435601), (61, 278499), (111, 153049), (183, 92833), (193, 88023), (481, 35319), (579, 29341), (793, 21423), (1443, 11773), (2257, 7527), (2379, 7141), (2509, 6771)]