21072579

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{5651}}^1$

素因数の和:5778

約数の個数: 16

約数和(自身を含む): 30927744

約数和(自身を除く): 9855165

約数列:

[1, 3, 11, 33, 113, 339, 1243, 3729, 5651, 16953, 62161, 186483, 638563, 1915689, 7024193, 21072579]

約数ペア:

[(1, 21072579), (3, 7024193), (11, 1915689), (33, 638563), (113, 186483), (339, 62161), (1243, 16953), (3729, 5651)]