81753561

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{28123}}^1$

素因数の和:28165

約数の個数: 24

約数和(自身を含む): 131620320

約数和(自身を除く): 49866759

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 28123, 84369, 253107, 478091, 534337, 1434273, 1603011, 4302819, 4809033, 9083729, 27251187, 81753561]

約数ペア:

[(1, 81753561), (3, 27251187), (9, 9083729), (17, 4809033), (19, 4302819), (51, 1603011), (57, 1434273), (153, 534337), (171, 478091), (323, 253107), (969, 84369), (2907, 28123)]