812291781

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{12967}}^1$

素因数の和:13153

約数の個数: 32

約数和(自身を含む): 1311324160

約数和(自身を除く): 499032379

約数列:

[1, 3, 7, 19, 21, 57, 133, 157, 399, 471, 1099, 2983, 3297, 8949, 12967, 20881, 38901, 62643, 90769, 246373, 272307, 739119, 1724611, 2035819, 5173833, 6107457, 14250733, 38680561, 42752199, 116041683, 270763927, 812291781]

約数ペア:

[(1, 812291781), (3, 270763927), (7, 116041683), (19, 42752199), (21, 38680561), (57, 14250733), (133, 6107457), (157, 5173833), (399, 2035819), (471, 1724611), (1099, 739119), (2983, 272307), (3297, 246373), (8949, 90769), (12967, 62643), (20881, 38901)]