20172875247

素因数分解:

$3^2\times 7^1\times {\mathrm{320204369}}^1$

素因数の和:320204382

約数の個数: 12

約数和(自身を含む): 33301254480

約数和(自身を除く): 13128379233

約数列:

[1, 3, 7, 9, 21, 63, 320204369, 960613107, 2241430583, 2881839321, 6724291749, 20172875247]

約数ペア:

[(1, 20172875247), (3, 6724291749), (7, 2881839321), (9, 2241430583), (21, 960613107), (63, 320204369)]