21839930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16421}}^1$

素因数の和:16454

約数の個数: 32

約数和(自身を含む): 47295360

約数和(自身を除く): 25455430

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16421, 32842, 82105, 114947, 164210, 229894, 311999, 574735, 623998, 1149470, 1559995, 2183993, 3119990, 4367986, 10919965, 21839930]

約数ペア:

[(1, 21839930), (2, 10919965), (5, 4367986), (7, 3119990), (10, 2183993), (14, 1559995), (19, 1149470), (35, 623998), (38, 574735), (70, 311999), (95, 229894), (133, 164210), (190, 114947), (266, 82105), (665, 32842), (1330, 16421)]