20555415

素因数分解:

$3^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1559}}^1$

素因数の和:1863

約数の個数: 24

約数和(自身を含む): 35773920

約数和(自身を除く): 15218505

約数列:

[1, 3, 5, 9, 15, 45, 293, 879, 1465, 1559, 2637, 4395, 4677, 7795, 13185, 14031, 23385, 70155, 456787, 1370361, 2283935, 4111083, 6851805, 20555415]

約数ペア:

[(1, 20555415), (3, 6851805), (5, 4111083), (9, 2283935), (15, 1370361), (45, 456787), (293, 70155), (879, 23385), (1465, 14031), (1559, 13185), (2637, 7795), (4395, 4677)]