21901023

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{2129}}^1$

素因数の和:2268

約数の個数: 20

約数和(自身を含む): 32989440

約数和(自身を除く): 11088417

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 2129, 3429, 6387, 10287, 19161, 57483, 172449, 270383, 811149, 2433447, 7300341, 21901023]

約数ペア:

[(1, 21901023), (3, 7300341), (9, 2433447), (27, 811149), (81, 270383), (127, 172449), (381, 57483), (1143, 19161), (2129, 10287), (3429, 6387)]