20570217

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{709}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 28968000

約数和(自身を除く): 8397783

約数列:

[1, 3, 19, 57, 509, 709, 1527, 2127, 9671, 13471, 29013, 40413, 360881, 1082643, 6856739, 20570217]

約数ペア:

[(1, 20570217), (3, 6856739), (19, 1082643), (57, 360881), (509, 40413), (709, 29013), (1527, 13471), (2127, 9671)]