18408321

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1297}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 28348320

約数和(自身を除く): 9939999

約数列:

[1, 3, 9, 19, 57, 83, 171, 249, 747, 1297, 1577, 3891, 4731, 11673, 14193, 24643, 73929, 107651, 221787, 322953, 968859, 2045369, 6136107, 18408321]

約数ペア:

[(1, 18408321), (3, 6136107), (9, 2045369), (19, 968859), (57, 322953), (83, 221787), (171, 107651), (249, 73929), (747, 24643), (1297, 14193), (1577, 11673), (3891, 4731)]