278840211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{117209}}^1$

素因数の和:117286

約数の個数: 16

約数和(自身を含む): 406953120

約数和(自身を除く): 128112909

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 117209, 351627, 1523717, 4571151, 7149749, 21449247, 92946737, 278840211]

約数ペア:

[(1, 278840211), (3, 92946737), (13, 21449247), (39, 7149749), (61, 4571151), (183, 1523717), (793, 351627), (2379, 117209)]