16989831

素因数分解:

$3^5\times {\mathrm{139}}^1\times {\mathrm{503}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 25683840

約数和(自身を除く): 8694009

約数列:

[1, 3, 9, 27, 81, 139, 243, 417, 503, 1251, 1509, 3753, 4527, 11259, 13581, 33777, 40743, 69917, 122229, 209751, 629253, 1887759, 5663277, 16989831]

約数ペア:

[(1, 16989831), (3, 5663277), (9, 1887759), (27, 629253), (81, 209751), (139, 122229), (243, 69917), (417, 40743), (503, 33777), (1251, 13581), (1509, 11259), (3753, 4527)]