20808906

素因数分解:

$2^1\times 3^1\times {\mathrm{163}}^1\times {\mathrm{21277}}^1$

素因数の和:21445

約数の個数: 16

約数和(自身を含む): 41875104

約数和(自身を除く): 21066198

約数列:

[1, 2, 3, 6, 163, 326, 489, 978, 21277, 42554, 63831, 127662, 3468151, 6936302, 10404453, 20808906]

約数ペア:

[(1, 20808906), (2, 10404453), (3, 6936302), (6, 3468151), (163, 127662), (326, 63831), (489, 42554), (978, 21277)]