21108141

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{18181}}^1$

素因数の和:18233

約数の個数: 16

約数和(自身を含む): 32000320

約数和(自身を除く): 10892179

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 18181, 54543, 163629, 490887, 781783, 2345349, 7036047, 21108141]

約数ペア:

[(1, 21108141), (3, 7036047), (9, 2345349), (27, 781783), (43, 490887), (129, 163629), (387, 54543), (1161, 18181)]