18680385

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{26497}}^1$

素因数の和:26552

約数の個数: 16

約数和(自身を含む): 30525696

約数和(自身を除く): 11845311

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 26497, 79491, 132485, 397455, 1245359, 3736077, 6226795, 18680385]

約数ペア:

[(1, 18680385), (3, 6226795), (5, 3736077), (15, 1245359), (47, 397455), (141, 132485), (235, 79491), (705, 26497)]