13211667

素因数分解:

$3^7\times 7^1\times {\mathrm{863}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 22671360

約数和(自身を除く): 9459693

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 863, 1701, 2187, 2589, 5103, 6041, 7767, 15309, 18123, 23301, 54369, 69903, 163107, 209709, 489321, 629127, 1467963, 1887381, 4403889, 13211667]

約数ペア:

[(1, 13211667), (3, 4403889), (7, 1887381), (9, 1467963), (21, 629127), (27, 489321), (63, 209709), (81, 163107), (189, 69903), (243, 54369), (567, 23301), (729, 18123), (863, 15309), (1701, 7767), (2187, 6041), (2589, 5103)]