18242945

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3919}}^1$

素因数の和:3957

約数の個数: 24

約数和(自身を含む): 26812800

約数和(自身を除く): 8569855

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 3919, 4655, 19595, 27433, 74461, 137165, 192031, 372305, 521227, 960155, 2606135, 3648589, 18242945]

約数ペア:

[(1, 18242945), (5, 3648589), (7, 2606135), (19, 960155), (35, 521227), (49, 372305), (95, 192031), (133, 137165), (245, 74461), (665, 27433), (931, 19595), (3919, 4655)]