90989919

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{91081}}^1$

素因数の和:91127

約数の個数: 16

約数和(自身を含む): 138444640

約数和(自身を除く): 47454721

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 91081, 273243, 819729, 2459187, 3369997, 10109991, 30329973, 90989919]

約数ペア:

[(1, 90989919), (3, 30329973), (9, 10109991), (27, 3369997), (37, 2459187), (111, 819729), (333, 273243), (999, 91081)]