206987487

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{15329}}^1$

素因数の和:15982

約数の個数: 16

約数和(自身を含む): 315920640

約数和(自身を除く): 108933153

約数列:

[1, 3, 7, 21, 643, 1929, 4501, 13503, 15329, 45987, 107303, 321909, 9856547, 29569641, 68995829, 206987487]

約数ペア:

[(1, 206987487), (3, 68995829), (7, 29569641), (21, 9856547), (643, 321909), (1929, 107303), (4501, 45987), (13503, 15329)]