20778888578

素因数分解:

$2^1\times 7^1\times {\mathrm{3581}}^1\times {\mathrm{414467}}^1$

素因数の和:418057

約数の個数: 16

約数和(自身を含む): 35630985024

約数和(自身を除く): 14852096446

約数列:

[1, 2, 7, 14, 3581, 7162, 25067, 50134, 414467, 828934, 2901269, 5802538, 1484206327, 2968412654, 10389444289, 20778888578]

約数ペア:

[(1, 20778888578), (2, 10389444289), (7, 2968412654), (14, 1484206327), (3581, 5802538), (7162, 2901269), (25067, 828934), (50134, 414467)]