81478439

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{3889}}^1$

素因数の和:4010

約数の個数: 16

約数和(自身を含む): 96720960

約数和(自身を除く): 15242521

約数列:

[1, 7, 41, 73, 287, 511, 2993, 3889, 20951, 27223, 159449, 283897, 1116143, 1987279, 11639777, 81478439]

約数ペア:

[(1, 81478439), (7, 11639777), (41, 1987279), (73, 1116143), (287, 283897), (511, 159449), (2993, 27223), (3889, 20951)]