21797721

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3191}}^1$

素因数の和:3234

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 14974119

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 207, 253, 297, 621, 759, 2277, 3191, 6831, 9573, 28719, 35101, 73393, 86157, 105303, 220179, 315909, 660537, 807323, 947727, 1981611, 2421969, 7265907, 21797721]

約数ペア:

[(1, 21797721), (3, 7265907), (9, 2421969), (11, 1981611), (23, 947727), (27, 807323), (33, 660537), (69, 315909), (99, 220179), (207, 105303), (253, 86157), (297, 73393), (621, 35101), (759, 28719), (2277, 9573), (3191, 6831)]