12987933

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{13159}}^1$

素因数の和:13216

約数の個数: 16

約数和(自身を含む): 20213760

約数和(自身を除く): 7225827

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 13159, 39477, 92113, 276339, 618473, 1855419, 4329311, 12987933]

約数ペア:

[(1, 12987933), (3, 4329311), (7, 1855419), (21, 618473), (47, 276339), (141, 92113), (329, 39477), (987, 13159)]