28959687

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{21031}}^1$

素因数の和:21060

約数の個数: 20

約数和(自身を含む): 45807696

約数和(自身を除く): 16848009

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 21031, 63093, 189279, 357527, 567837, 1072581, 1703511, 3217743, 9653229, 28959687]

約数ペア:

[(1, 28959687), (3, 9653229), (9, 3217743), (17, 1703511), (27, 1072581), (51, 567837), (81, 357527), (153, 189279), (459, 63093), (1377, 21031)]