19538577

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2213}}^1$

素因数の和:2334

約数の個数: 20

約数和(自身を含む): 29468340

約数和(自身を除く): 9929763

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2213, 2943, 6639, 8829, 19917, 59751, 179253, 241217, 723651, 2170953, 6512859, 19538577]

約数ペア:

[(1, 19538577), (3, 6512859), (9, 2170953), (27, 723651), (81, 241217), (109, 179253), (327, 59751), (981, 19917), (2213, 8829), (2943, 6639)]