11987143

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 14100480

約数和(自身を除く): 2113337

約数列:

[1, 7, 71, 89, 271, 497, 623, 1897, 6319, 19241, 24119, 44233, 134687, 168833, 1712449, 11987143]

約数ペア:

[(1, 11987143), (7, 1712449), (71, 168833), (89, 134687), (271, 44233), (497, 24119), (623, 19241), (1897, 6319)]