20655789

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{739}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 34667520

約数和(自身を除く): 14011731

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 739, 847, 1331, 2217, 2541, 3993, 5173, 8129, 9317, 15519, 24387, 27951, 56903, 89419, 170709, 268257, 625933, 983609, 1877799, 2950827, 6885263, 20655789]

約数ペア:

[(1, 20655789), (3, 6885263), (7, 2950827), (11, 1877799), (21, 983609), (33, 625933), (77, 268257), (121, 170709), (231, 89419), (363, 56903), (739, 27951), (847, 24387), (1331, 15519), (2217, 9317), (2541, 8129), (3993, 5173)]