21098517

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{7703}}^1$

素因数の和:7800

約数の個数: 16

約数和(自身を含む): 31062528

約数和(自身を除く): 9964011

約数列:

[1, 3, 11, 33, 83, 249, 913, 2739, 7703, 23109, 84733, 254199, 639349, 1918047, 7032839, 21098517]

約数ペア:

[(1, 21098517), (3, 7032839), (11, 1918047), (33, 639349), (83, 254199), (249, 84733), (913, 23109), (2739, 7703)]