28651287

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{31729}}^1$

素因数の和:31782

約数の個数: 16

約数和(自身を含む): 44675840

約数和(自身を除く): 16024553

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 31729, 95187, 222103, 666309, 1364347, 4093041, 9550429, 28651287]

約数ペア:

[(1, 28651287), (3, 9550429), (7, 4093041), (21, 1364347), (43, 666309), (129, 222103), (301, 95187), (903, 31729)]