2819999

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 3734640

約数和(自身を除く): 914641

約数列:

[1, 7, 13, 19, 49, 91, 133, 233, 247, 637, 931, 1631, 1729, 3029, 4427, 11417, 12103, 21203, 30989, 57551, 148421, 216923, 402857, 2819999]

約数ペア:

[(1, 2819999), (7, 402857), (13, 216923), (19, 148421), (49, 57551), (91, 30989), (133, 21203), (233, 12103), (247, 11417), (637, 4427), (931, 3029), (1631, 1729)]