20710906

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{1217}}^1$

素因数の和:1413

約数の個数: 16

約数和(自身を含む): 31804416

約数和(自身を除く): 11093510

約数列:

[1, 2, 67, 127, 134, 254, 1217, 2434, 8509, 17018, 81539, 154559, 163078, 309118, 10355453, 20710906]

約数ペア:

[(1, 20710906), (2, 10355453), (67, 309118), (127, 163078), (134, 154559), (254, 81539), (1217, 17018), (2434, 8509)]