668749689

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{485657}}^1$

素因数の和:485686

約数の個数: 20

約数和(自身を含む): 1057763124

約数和(自身を除く): 389013435

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 485657, 1456971, 4370913, 8256169, 13112739, 24768507, 39338217, 74305521, 222916563, 668749689]

約数ペア:

[(1, 668749689), (3, 222916563), (9, 74305521), (17, 39338217), (27, 24768507), (51, 13112739), (81, 8256169), (153, 4370913), (459, 1456971), (1377, 485657)]