20449755

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3469}}^1$

素因数の和:3611

約数の個数: 24

約数和(自身を含む): 35727120

約数和(自身を除く): 15277365

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3469, 5895, 10407, 17345, 31221, 52035, 156105, 454439, 1363317, 2272195, 4089951, 6816585, 20449755]

約数ペア:

[(1, 20449755), (3, 6816585), (5, 4089951), (9, 2272195), (15, 1363317), (45, 454439), (131, 156105), (393, 52035), (655, 31221), (1179, 17345), (1965, 10407), (3469, 5895)]