21729279

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{50651}}^1$

素因数の和:50678

約数の個数: 16

約数和(自身を含む): 34038144

約数和(自身を除く): 12308865

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 50651, 151953, 557161, 658463, 1671483, 1975389, 7243093, 21729279]

約数ペア:

[(1, 21729279), (3, 7243093), (11, 1975389), (13, 1671483), (33, 658463), (39, 557161), (143, 151953), (429, 50651)]