197888159

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{1279}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 244039680

約数和(自身を除く): 46151521

約数列:

[1, 7, 23, 31, 161, 217, 713, 961, 1279, 4991, 6727, 8953, 22103, 29417, 39649, 154721, 205919, 277543, 911927, 1229119, 6383489, 8603833, 28269737, 197888159]

約数ペア:

[(1, 197888159), (7, 28269737), (23, 8603833), (31, 6383489), (161, 1229119), (217, 911927), (713, 277543), (961, 205919), (1279, 154721), (4991, 39649), (6727, 29417), (8953, 22103)]