19968849

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8501}}^1$

素因数の和:8542

約数の個数: 20

約数和(自身を含む): 30862260

約数和(自身を除く): 10893411

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8501, 25503, 76509, 229527, 246529, 688581, 739587, 2218761, 6656283, 19968849]

約数ペア:

[(1, 19968849), (3, 6656283), (9, 2218761), (27, 739587), (29, 688581), (81, 246529), (87, 229527), (261, 76509), (783, 25503), (2349, 8501)]