19550781

素因数分解:

$3^3\times {\mathrm{359}}^1\times {\mathrm{2017}}^1$

素因数の和:2385

約数の個数: 16

約数和(自身を含む): 29059200

約数和(自身を除く): 9508419

約数列:

[1, 3, 9, 27, 359, 1077, 2017, 3231, 6051, 9693, 18153, 54459, 724103, 2172309, 6516927, 19550781]

約数ペア:

[(1, 19550781), (3, 6516927), (9, 2172309), (27, 724103), (359, 54459), (1077, 18153), (2017, 9693), (3231, 6051)]