221209131

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{515639}}^1$

素因数の和:515666

約数の個数: 16

約数和(自身を含む): 346510080

約数和(自身を除く): 125300949

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 515639, 1546917, 5672029, 6703307, 17016087, 20109921, 73736377, 221209131]

約数ペア:

[(1, 221209131), (3, 73736377), (11, 20109921), (13, 17016087), (33, 6703307), (39, 5672029), (143, 1546917), (429, 515639)]