19891737

素因数分解:

$3^5\times {\mathrm{109}}^1\times {\mathrm{751}}^1$

素因数の和:875

約数の個数: 24

約数和(自身を含む): 30110080

約数和(自身を除く): 10218343

約数列:

[1, 3, 9, 27, 81, 109, 243, 327, 751, 981, 2253, 2943, 6759, 8829, 20277, 26487, 60831, 81859, 182493, 245577, 736731, 2210193, 6630579, 19891737]

約数ペア:

[(1, 19891737), (3, 6630579), (9, 2210193), (27, 736731), (81, 245577), (109, 182493), (243, 81859), (327, 60831), (751, 26487), (981, 20277), (2253, 8829), (2943, 6759)]