639314

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:449

約数の個数: 16

約数和(自身を含む): 1051008

約数和(自身を除く): 411694

約数列:

[1, 2, 13, 26, 67, 134, 367, 734, 871, 1742, 4771, 9542, 24589, 49178, 319657, 639314]

約数ペア:

[(1, 639314), (2, 319657), (13, 49178), (26, 24589), (67, 9542), (134, 4771), (367, 1742), (734, 871)]