520015707

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{28789}}^1$

素因数の和:29024

約数の個数: 20

約数和(自身を含む): 780324160

約数和(自身を除く): 260308453

約数列:

[1, 3, 9, 27, 81, 223, 669, 2007, 6021, 18063, 28789, 86367, 259101, 777303, 2331909, 6419947, 19259841, 57779523, 173338569, 520015707]

約数ペア:

[(1, 520015707), (3, 173338569), (9, 57779523), (27, 19259841), (81, 6419947), (223, 2331909), (669, 777303), (2007, 259101), (6021, 86367), (18063, 28789)]