20889099

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 38548224

約数和(自身を除く): 17659125

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 63, 77, 99, 129, 231, 301, 387, 473, 693, 701, 903, 1419, 2103, 2709, 3311, 4257, 4907, 6309, 7711, 9933, 14721, 23133, 29799, 30143, 44163, 53977, 69399, 90429, 161931, 211001, 271287, 331573, 485793, 633003, 994719, 1899009, 2321011, 2984157, 6963033, 20889099]

約数ペア:

[(1, 20889099), (3, 6963033), (7, 2984157), (9, 2321011), (11, 1899009), (21, 994719), (33, 633003), (43, 485793), (63, 331573), (77, 271287), (99, 211001), (129, 161931), (231, 90429), (301, 69399), (387, 53977), (473, 44163), (693, 30143), (701, 29799), (903, 23133), (1419, 14721), (2103, 9933), (2709, 7711), (3311, 6309), (4257, 4907)]