21207449

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{743}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 23784192

約数和(自身を除く): 2576743

約数列:

[1, 17, 23, 73, 391, 743, 1241, 1679, 12631, 17089, 28543, 54239, 290513, 922063, 1247497, 21207449]

約数ペア:

[(1, 21207449), (17, 1247497), (23, 922063), (73, 290513), (391, 54239), (743, 28543), (1241, 17089), (1679, 12631)]