18547281

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 27630720

約数和(自身を除く): 9083439

約数列:

[1, 3, 9, 47, 141, 163, 269, 423, 489, 807, 1467, 2421, 7661, 12643, 22983, 37929, 43847, 68949, 113787, 131541, 394623, 2060809, 6182427, 18547281]

約数ペア:

[(1, 18547281), (3, 6182427), (9, 2060809), (47, 394623), (141, 131541), (163, 113787), (269, 68949), (423, 43847), (489, 37929), (807, 22983), (1467, 12643), (2421, 7661)]