18656415

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8821}}^1$

素因数の和:8879

約数の個数: 24

約数和(自身を含む): 33029568

約数和(自身を除く): 14373153

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 8821, 26463, 44105, 79389, 132315, 396945, 414587, 1243761, 2072935, 3731283, 6218805, 18656415]

約数ペア:

[(1, 18656415), (3, 6218805), (5, 3731283), (9, 2072935), (15, 1243761), (45, 414587), (47, 396945), (141, 132315), (235, 79389), (423, 44105), (705, 26463), (2115, 8821)]