21770397

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3187}}^1$

素因数の和:3230

約数の個数: 32

約数和(自身を含む): 36725760

約数和(自身を除く): 14955363

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 207, 253, 297, 621, 759, 2277, 3187, 6831, 9561, 28683, 35057, 73301, 86049, 105171, 219903, 315513, 659709, 806311, 946539, 1979127, 2418933, 7256799, 21770397]

約数ペア:

[(1, 21770397), (3, 7256799), (9, 2418933), (11, 1979127), (23, 946539), (27, 806311), (33, 659709), (69, 315513), (99, 219903), (207, 105171), (253, 86049), (297, 73301), (621, 35057), (759, 28683), (2277, 9561), (3187, 6831)]