18640887

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1741}}^1$

素因数の和:1870

約数の個数: 16

約数和(自身を含む): 25753728

約数和(自身を除く): 7112841

約数列:

[1, 3, 43, 83, 129, 249, 1741, 3569, 5223, 10707, 74863, 144503, 224589, 433509, 6213629, 18640887]

約数ペア:

[(1, 18640887), (3, 6213629), (43, 433509), (83, 224589), (129, 144503), (249, 74863), (1741, 10707), (3569, 5223)]