19928078

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{1171}}^1$

素因数の和:1367

約数の個数: 16

約数和(自身を含む): 30603264

約数和(自身を除く): 10675186

約数列:

[1, 2, 67, 127, 134, 254, 1171, 2342, 8509, 17018, 78457, 148717, 156914, 297434, 9964039, 19928078]

約数ペア:

[(1, 19928078), (2, 9964039), (67, 297434), (127, 156914), (134, 148717), (254, 78457), (1171, 17018), (2342, 8509)]