19504155

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2749}}^1$

素因数の和:2811

約数の個数: 32

約数和(自身を含む): 34848000

約数和(自身を除く): 15343845

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 129, 165, 215, 473, 645, 1419, 2365, 2749, 7095, 8247, 13745, 30239, 41235, 90717, 118207, 151195, 354621, 453585, 591035, 1300277, 1773105, 3900831, 6501385, 19504155]

約数ペア:

[(1, 19504155), (3, 6501385), (5, 3900831), (11, 1773105), (15, 1300277), (33, 591035), (43, 453585), (55, 354621), (129, 151195), (165, 118207), (215, 90717), (473, 41235), (645, 30239), (1419, 13745), (2365, 8247), (2749, 7095)]