19718061

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 30385152

約数和(自身を除く): 10667091

約数列:

[1, 3, 11, 23, 33, 69, 83, 249, 253, 313, 759, 913, 939, 1909, 2739, 3443, 5727, 7199, 10329, 20999, 21597, 25979, 62997, 77937, 79189, 237567, 285769, 597517, 857307, 1792551, 6572687, 19718061]

約数ペア:

[(1, 19718061), (3, 6572687), (11, 1792551), (23, 857307), (33, 597517), (69, 285769), (83, 237567), (249, 79189), (253, 77937), (313, 62997), (759, 25979), (913, 21597), (939, 20999), (1909, 10329), (2739, 7199), (3443, 5727)]