28408215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{172171}}^1$

素因数の和:172190

約数の個数: 16

約数和(自身を含む): 49585536

約数和(自身を除く): 21177321

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 172171, 516513, 860855, 1893881, 2582565, 5681643, 9469405, 28408215]

約数ペア:

[(1, 28408215), (3, 9469405), (5, 5681643), (11, 2582565), (15, 1893881), (33, 860855), (55, 516513), (165, 172171)]