28728279

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{229}}^1\times {\mathrm{263}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 42625440

約数和(自身を除く): 13897161

約数列:

[1, 3, 9, 53, 159, 229, 263, 477, 687, 789, 2061, 2367, 12137, 13939, 36411, 41817, 60227, 109233, 125451, 180681, 542043, 3192031, 9576093, 28728279]

約数ペア:

[(1, 28728279), (3, 9576093), (9, 3192031), (53, 542043), (159, 180681), (229, 125451), (263, 109233), (477, 60227), (687, 41817), (789, 36411), (2061, 13939), (2367, 12137)]