257942013

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{93763}}^1$

素因数の和:93904

約数の個数: 16

約数和(自身を含む): 396059136

約数和(自身を除く): 138117123

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 93763, 281289, 656341, 1969023, 12282953, 36848859, 85980671, 257942013]

約数ペア:

[(1, 257942013), (3, 85980671), (7, 36848859), (21, 12282953), (131, 1969023), (393, 656341), (917, 281289), (2751, 93763)]