21453729

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{5119}}^1$

素因数の和:5260

約数の個数: 16

約数和(自身を含む): 31457280

約数和(自身を除く): 10003551

約数列:

[1, 3, 11, 33, 127, 381, 1397, 4191, 5119, 15357, 56309, 168927, 650113, 1950339, 7151243, 21453729]

約数ペア:

[(1, 21453729), (3, 7151243), (11, 1950339), (33, 650113), (127, 168927), (381, 56309), (1397, 15357), (4191, 5119)]