21162537

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19433}}^1$

素因数の和:19461

約数の個数: 18

約数和(自身を含む): 33601386

約数和(自身を除く): 12438849

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19433, 58299, 174897, 213763, 641289, 1923867, 2351393, 7054179, 21162537]

約数ペア:

[(1, 21162537), (3, 7054179), (9, 2351393), (11, 1923867), (33, 641289), (99, 213763), (121, 174897), (363, 58299), (1089, 19433)]