21375243

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{18701}}^1$

素因数の和:18834

約数の個数: 12

約数和(自身を含む): 31120128

約数和(自身を除く): 9744885

約数列:

[1, 3, 9, 127, 381, 1143, 18701, 56103, 168309, 2375027, 7125081, 21375243]

約数ペア:

[(1, 21375243), (3, 7125081), (9, 2375027), (127, 168309), (381, 56103), (1143, 18701)]