20931351

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9677}}^1$

素因数の和:9790

約数の個数: 16

約数和(自身を含む): 32208384

約数和(自身を除く): 11277033

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 9677, 29031, 67739, 203217, 996731, 2990193, 6977117, 20931351]

約数ペア:

[(1, 20931351), (3, 6977117), (7, 2990193), (21, 996731), (103, 203217), (309, 67739), (721, 29031), (2163, 9677)]