21895030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{115237}}^1$

素因数の和:115263

約数の個数: 16

約数和(自身を含む): 41485680

約数和(自身を除く): 19590650

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 115237, 230474, 576185, 1152370, 2189503, 4379006, 10947515, 21895030]

約数ペア:

[(1, 21895030), (2, 10947515), (5, 4379006), (10, 2189503), (19, 1152370), (38, 576185), (95, 230474), (190, 115237)]