638501838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8185921}}^1$

素因数の和:8185939

約数の個数: 16

約数和(自身を含む): 1375234896

約数和(自身を除く): 736733058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 8185921, 16371842, 24557763, 49115526, 106416973, 212833946, 319250919, 638501838]

約数ペア:

[(1, 638501838), (2, 319250919), (3, 212833946), (6, 106416973), (13, 49115526), (26, 24557763), (39, 16371842), (78, 8185921)]