21040373

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 23094720

約数和(自身を除く): 2054347

約数列:

[1, 17, 43, 107, 269, 731, 1819, 4573, 4601, 11567, 28783, 78217, 196639, 489311, 1237669, 21040373]

約数ペア:

[(1, 21040373), (17, 1237669), (43, 489311), (107, 196639), (269, 78217), (731, 28783), (1819, 11567), (4573, 4601)]