20485449

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:461

約数の個数: 24

約数和(自身を含む): 30401280

約数和(自身を除く): 9915831

約数列:

[1, 3, 9, 59, 173, 177, 223, 519, 531, 669, 1557, 2007, 10207, 13157, 30621, 38579, 39471, 91863, 115737, 118413, 347211, 2276161, 6828483, 20485449]

約数ペア:

[(1, 20485449), (3, 6828483), (9, 2276161), (59, 347211), (173, 118413), (177, 115737), (223, 91863), (519, 39471), (531, 38579), (669, 30621), (1557, 13157), (2007, 10207)]