19774671

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 31173120

約数和(自身を除く): 11398449

約数列:

[1, 3, 7, 21, 53, 109, 159, 163, 327, 371, 489, 763, 1113, 1141, 2289, 3423, 5777, 8639, 17331, 17767, 25917, 40439, 53301, 60473, 121317, 124369, 181419, 373107, 941651, 2824953, 6591557, 19774671]

約数ペア:

[(1, 19774671), (3, 6591557), (7, 2824953), (21, 941651), (53, 373107), (109, 181419), (159, 124369), (163, 121317), (327, 60473), (371, 53301), (489, 40439), (763, 25917), (1113, 17767), (1141, 17331), (2289, 8639), (3423, 5777)]