21241467

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{829}}^1$

素因数の和:924

約数の個数: 32

約数和(自身を含む): 34395200

約数和(自身を除く): 13153733

約数列:

[1, 3, 9, 13, 27, 39, 73, 117, 219, 351, 657, 829, 949, 1971, 2487, 2847, 7461, 8541, 10777, 22383, 25623, 32331, 60517, 96993, 181551, 290979, 544653, 786721, 1633959, 2360163, 7080489, 21241467]

約数ペア:

[(1, 21241467), (3, 7080489), (9, 2360163), (13, 1633959), (27, 786721), (39, 544653), (73, 290979), (117, 181551), (219, 96993), (351, 60517), (657, 32331), (829, 25623), (949, 22383), (1971, 10777), (2487, 8541), (2847, 7461)]