21703143

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1999}}^1$

素因数の和:2067

約数の個数: 32

約数和(自身を含む): 36864000

約数和(自身を除く): 15160857

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 1999, 3619, 5997, 10857, 13993, 21989, 41979, 65967, 93953, 153923, 281859, 461769, 657671, 1033483, 1973013, 3100449, 7234381, 21703143]

約数ペア:

[(1, 21703143), (3, 7234381), (7, 3100449), (11, 1973013), (21, 1033483), (33, 657671), (47, 461769), (77, 281859), (141, 153923), (231, 93953), (329, 65967), (517, 41979), (987, 21989), (1551, 13993), (1999, 10857), (3619, 5997)]