28657563

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2221}}^1$

素因数の和:2275

約数の個数: 32

約数和(自身を含む): 46075392

約数和(自身を除く): 17417829

約数列:

[1, 3, 11, 17, 23, 33, 51, 69, 187, 253, 391, 561, 759, 1173, 2221, 4301, 6663, 12903, 24431, 37757, 51083, 73293, 113271, 153249, 415327, 561913, 868411, 1245981, 1685739, 2605233, 9552521, 28657563]

約数ペア:

[(1, 28657563), (3, 9552521), (11, 2605233), (17, 1685739), (23, 1245981), (33, 868411), (51, 561913), (69, 415327), (187, 153249), (253, 113271), (391, 73293), (561, 51083), (759, 37757), (1173, 24431), (2221, 12903), (4301, 6663)]