9987381

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{7253}}^1$

素因数の和:7282

約数の個数: 20

約数和(自身を含む): 15799212

約数和(自身を除く): 5811831

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 7253, 21759, 65277, 123301, 195831, 369903, 587493, 1109709, 3329127, 9987381]

約数ペア:

[(1, 9987381), (3, 3329127), (9, 1109709), (17, 587493), (27, 369903), (51, 195831), (81, 123301), (153, 65277), (459, 21759), (1377, 7253)]