21145267

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2207}}^1$

素因数の和:2298

約数の個数: 16

約数和(自身を含む): 25224192

約数和(自身を除く): 4078925

約数列:

[1, 11, 13, 67, 143, 737, 871, 2207, 9581, 24277, 28691, 147869, 315601, 1626559, 1922297, 21145267]

約数ペア:

[(1, 21145267), (11, 1922297), (13, 1626559), (67, 315601), (143, 147869), (737, 28691), (871, 24277), (2207, 9581)]