20565889533

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1365869}}^1$

素因数の和:1366121

約数の個数: 24

約数和(自身を含む): 34092115200

約数和(自身を除く): 13526225667

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1673, 2151, 5019, 15057, 1365869, 4097607, 9561083, 12292821, 28683249, 86049747, 326442691, 979328073, 2285098837, 2937984219, 6855296511, 20565889533]

約数ペア:

[(1, 20565889533), (3, 6855296511), (7, 2937984219), (9, 2285098837), (21, 979328073), (63, 326442691), (239, 86049747), (717, 28683249), (1673, 12292821), (2151, 9561083), (5019, 4097607), (15057, 1365869)]