27999993

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2061

約数の個数: 32

約数和(自身を含む): 46080000

約数和(自身を除く): 18080007

約数列:

[1, 3, 7, 21, 23, 29, 69, 87, 161, 203, 483, 609, 667, 1999, 2001, 4669, 5997, 13993, 14007, 41979, 45977, 57971, 137931, 173913, 321839, 405797, 965517, 1217391, 1333333, 3999999, 9333331, 27999993]

約数ペア:

[(1, 27999993), (3, 9333331), (7, 3999999), (21, 1333333), (23, 1217391), (29, 965517), (69, 405797), (87, 321839), (161, 173913), (203, 137931), (483, 57971), (609, 45977), (667, 41979), (1999, 14007), (2001, 13993), (4669, 5997)]