20217747

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8629}}^1$

素因数の和:8714

約数の個数: 16

約数和(自身を含む): 29825280

約数和(自身を除く): 9607533

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 8629, 25887, 94919, 284757, 612659, 1837977, 6739249, 20217747]

約数ペア:

[(1, 20217747), (3, 6739249), (11, 1837977), (33, 612659), (71, 284757), (213, 94919), (781, 25887), (2343, 8629)]