21177118

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1\times {\mathrm{661}}^1$

素因数の和:939

約数の個数: 16

約数和(自身を含む): 32363856

約数和(自身を除く): 11186738

約数列:

[1, 2, 83, 166, 193, 386, 661, 1322, 16019, 32038, 54863, 109726, 127573, 255146, 10588559, 21177118]

約数ペア:

[(1, 21177118), (2, 10588559), (83, 255146), (166, 127573), (193, 109726), (386, 54863), (661, 32038), (1322, 16019)]