21240667

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 26815536

約数和(自身を除く): 5574869

約数列:

[1, 7, 17, 43, 49, 119, 301, 593, 731, 833, 2107, 4151, 5117, 10081, 25499, 29057, 35819, 70567, 178493, 433483, 493969, 1249451, 3034381, 21240667]

約数ペア:

[(1, 21240667), (7, 3034381), (17, 1249451), (43, 493969), (49, 433483), (119, 178493), (301, 70567), (593, 35819), (731, 29057), (833, 25499), (2107, 10081), (4151, 5117)]