2991339

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 4785872

約数和(自身を除く): 1794533

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 691, 1443, 2073, 4329, 6219, 8983, 25567, 26949, 76701, 80847, 230103, 332371, 997113, 2991339]

約数ペア:

[(1, 2991339), (3, 997113), (9, 332371), (13, 230103), (37, 80847), (39, 76701), (111, 26949), (117, 25567), (333, 8983), (481, 6219), (691, 4329), (1443, 2073)]