18685179

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 27835392

約数和(自身を除く): 9150213

約数列:

[1, 3, 9, 47, 141, 163, 271, 423, 489, 813, 1467, 2439, 7661, 12737, 22983, 38211, 44173, 68949, 114633, 132519, 397557, 2076131, 6228393, 18685179]

約数ペア:

[(1, 18685179), (3, 6228393), (9, 2076131), (47, 397557), (141, 132519), (163, 114633), (271, 68949), (423, 44173), (489, 38211), (813, 22983), (1467, 12737), (2439, 7661)]