18686757

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2797}}^1$

素因数の和:2948

約数の個数: 16

約数和(自身を含む): 26592192

約数和(自身を除く): 7905435

約数列:

[1, 3, 17, 51, 131, 393, 2227, 2797, 6681, 8391, 47549, 142647, 366407, 1099221, 6228919, 18686757]

約数ペア:

[(1, 18686757), (3, 6228919), (17, 1099221), (51, 366407), (131, 142647), (393, 47549), (2227, 8391), (2797, 6681)]