209217547

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{66271}}^1$

素因数の和:66330

約数の個数: 16

約数和(自身を含む): 267208704

約数和(自身を除く): 57991157

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 66271, 463897, 728981, 2717111, 5102867, 19019777, 29888221, 209217547]

約数ペア:

[(1, 209217547), (7, 29888221), (11, 19019777), (41, 5102867), (77, 2717111), (287, 728981), (451, 463897), (3157, 66271)]