19815489

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1877}}^1$

素因数の和:1926

約数の個数: 32

約数和(自身を含む): 32451840

約数和(自身を除く): 12636351

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 153, 207, 391, 459, 621, 1173, 1877, 3519, 5631, 10557, 16893, 31909, 43171, 50679, 95727, 129513, 287181, 388539, 733907, 861543, 1165617, 2201721, 6605163, 19815489]

約数ペア:

[(1, 19815489), (3, 6605163), (9, 2201721), (17, 1165617), (23, 861543), (27, 733907), (51, 388539), (69, 287181), (153, 129513), (207, 95727), (391, 50679), (459, 43171), (621, 31909), (1173, 16893), (1877, 10557), (3519, 5631)]