7287399

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{883}}^1$

素因数の和:1027

約数の個数: 24

約数和(自身を含む): 12135552

約数和(自身を除く): 4848153

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 883, 917, 1179, 2649, 2751, 6181, 7947, 8253, 18543, 55629, 115673, 347019, 809711, 1041057, 2429133, 7287399]

約数ペア:

[(1, 7287399), (3, 2429133), (7, 1041057), (9, 809711), (21, 347019), (63, 115673), (131, 55629), (393, 18543), (883, 8253), (917, 7947), (1179, 6181), (2649, 2751)]