18405243

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2909}}^1$

素因数の和:2971

約数の個数: 24

約数和(自身を含む): 28750800

約数和(自身を除く): 10345557

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 2909, 6327, 8727, 26181, 55271, 107633, 165813, 322899, 497439, 968697, 2045027, 6135081, 18405243]

約数ペア:

[(1, 18405243), (3, 6135081), (9, 2045027), (19, 968697), (37, 497439), (57, 322899), (111, 165813), (171, 107633), (333, 55271), (703, 26181), (2109, 8727), (2909, 6327)]