2131983

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 3605888

約数和(自身を除く): 1473905

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 787, 903, 2361, 2709, 5509, 7083, 16527, 33841, 49581, 101523, 236887, 304569, 710661, 2131983]

約数ペア:

[(1, 2131983), (3, 710661), (7, 304569), (9, 236887), (21, 101523), (43, 49581), (63, 33841), (129, 16527), (301, 7083), (387, 5509), (787, 2709), (903, 2361)]