12687171

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4001}}^1$

素因数の和:4162

約数の個数: 16

約数和(自身を含む): 19465728

約数和(自身を除く): 6778557

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 4001, 12003, 28007, 84021, 604151, 1812453, 4229057, 12687171]

約数ペア:

[(1, 12687171), (3, 4229057), (7, 1812453), (21, 604151), (151, 84021), (453, 28007), (1057, 12003), (3171, 4001)]