20492584

素因数分解:

$2^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 45482580

約数和(自身を除く): 24989996

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 61, 98, 122, 196, 244, 392, 427, 488, 854, 857, 1708, 1714, 2989, 3416, 3428, 5978, 5999, 6856, 11956, 11998, 23912, 23996, 41993, 47992, 52277, 83986, 104554, 167972, 209108, 335944, 365939, 418216, 731878, 1463756, 2561573, 2927512, 5123146, 10246292, 20492584]

約数ペア:

[(1, 20492584), (2, 10246292), (4, 5123146), (7, 2927512), (8, 2561573), (14, 1463756), (28, 731878), (49, 418216), (56, 365939), (61, 335944), (98, 209108), (122, 167972), (196, 104554), (244, 83986), (392, 52277), (427, 47992), (488, 41993), (854, 23996), (857, 23912), (1708, 11998), (1714, 11956), (2989, 6856), (3416, 5999), (3428, 5978)]