19555173

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17957}}^1$

素因数の和:17985

約数の個数: 18

約数和(自身を含む): 31049382

約数和(自身を除く): 11494209

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 17957, 53871, 161613, 197527, 592581, 1777743, 2172797, 6518391, 19555173]

約数ペア:

[(1, 19555173), (3, 6518391), (9, 2172797), (11, 1777743), (33, 592581), (99, 197527), (121, 161613), (363, 53871), (1089, 17957)]