20905276

素因数分解:

$2^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{2657}}^1$

素因数の和:2949

約数の個数: 24

約数和(自身を含む): 41975136

約数和(自身を除く): 21069860

約数列:

[1, 2, 4, 7, 14, 28, 281, 562, 1124, 1967, 2657, 3934, 5314, 7868, 10628, 18599, 37198, 74396, 746617, 1493234, 2986468, 5226319, 10452638, 20905276]

約数ペア:

[(1, 20905276), (2, 10452638), (4, 5226319), (7, 2986468), (14, 1493234), (28, 746617), (281, 74396), (562, 37198), (1124, 18599), (1967, 10628), (2657, 7868), (3934, 5314)]