20778018

素因数分解:

$2^1\times 3^1\times {\mathrm{409}}^1\times {\mathrm{8467}}^1$

素因数の和:8881

約数の個数: 16

約数和(自身を含む): 41662560

約数和(自身を除く): 20884542

約数列:

[1, 2, 3, 6, 409, 818, 1227, 2454, 8467, 16934, 25401, 50802, 3463003, 6926006, 10389009, 20778018]

約数ペア:

[(1, 20778018), (2, 10389009), (3, 6926006), (6, 3463003), (409, 50802), (818, 25401), (1227, 16934), (2454, 8467)]