817997958

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{640061}}^1$

素因数の和:640140

約数の個数: 24

約数和(自身を含む): 1797294096

約数和(自身を除く): 979296138

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 640061, 1280122, 1920183, 3840366, 5760549, 11521098, 45444331, 90888662, 136332993, 272665986, 408998979, 817997958]

約数ペア:

[(1, 817997958), (2, 408998979), (3, 272665986), (6, 136332993), (9, 90888662), (18, 45444331), (71, 11521098), (142, 5760549), (213, 3840366), (426, 1920183), (639, 1280122), (1278, 640061)]