1389393

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{1009}}^1$

素因数の和:1038

約数の個数: 20

約数和(自身を含む): 2199780

約数和(自身を除く): 810387

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1009, 1377, 3027, 9081, 17153, 27243, 51459, 81729, 154377, 463131, 1389393]

約数ペア:

[(1, 1389393), (3, 463131), (9, 154377), (17, 81729), (27, 51459), (51, 27243), (81, 17153), (153, 9081), (459, 3027), (1009, 1377)]