21368799

素因数分解:

$3^3\times {\mathrm{71}}^2\times {\mathrm{157}}^1$

素因数の和:308

約数の個数: 24

約数和(自身を含む): 32314160

約数和(自身を除く): 10945361

約数列:

[1, 3, 9, 27, 71, 157, 213, 471, 639, 1413, 1917, 4239, 5041, 11147, 15123, 33441, 45369, 100323, 136107, 300969, 791437, 2374311, 7122933, 21368799]

約数ペア:

[(1, 21368799), (3, 7122933), (9, 2374311), (27, 791437), (71, 300969), (157, 136107), (213, 100323), (471, 45369), (639, 33441), (1413, 15123), (1917, 11147), (4239, 5041)]