20109896

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1103}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 39346560

約数和(自身を除く): 19236664

約数列:

[1, 2, 4, 8, 43, 53, 86, 106, 172, 212, 344, 424, 1103, 2206, 2279, 4412, 4558, 8824, 9116, 18232, 47429, 58459, 94858, 116918, 189716, 233836, 379432, 467672, 2513737, 5027474, 10054948, 20109896]

約数ペア:

[(1, 20109896), (2, 10054948), (4, 5027474), (8, 2513737), (43, 467672), (53, 379432), (86, 233836), (106, 189716), (172, 116918), (212, 94858), (344, 58459), (424, 47429), (1103, 18232), (2206, 9116), (2279, 8824), (4412, 4558)]