81273998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{66509}}^1$

素因数の和:66571

約数の個数: 16

約数和(自身を含む): 134084160

約数和(自身を除く): 52810162

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 66509, 133018, 864617, 1729234, 3125923, 6251846, 40636999, 81273998]

約数ペア:

[(1, 81273998), (2, 40636999), (13, 6251846), (26, 3125923), (47, 1729234), (94, 864617), (611, 133018), (1222, 66509)]