689276871

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{207551}}^1$

素因数の和:207604

約数の個数: 20

約数和(自身を含む): 1054779264

約数和(自身を除く): 365502393

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 207551, 622653, 1867959, 5603877, 8509591, 16811631, 25528773, 76586319, 229758957, 689276871]

約数ペア:

[(1, 689276871), (3, 229758957), (9, 76586319), (27, 25528773), (41, 16811631), (81, 8509591), (123, 5603877), (369, 1867959), (1107, 622653), (3321, 207551)]