20620988

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{503}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 37269792

約数和(自身を除く): 16648804

約数列:

[1, 2, 4, 37, 74, 148, 277, 503, 554, 1006, 1108, 2012, 10249, 18611, 20498, 37222, 40996, 74444, 139331, 278662, 557324, 5155247, 10310494, 20620988]

約数ペア:

[(1, 20620988), (2, 10310494), (4, 5155247), (37, 557324), (74, 278662), (148, 139331), (277, 74444), (503, 40996), (554, 37222), (1006, 20498), (1108, 18611), (2012, 10249)]