138972644

素因数分解:

$2^2\times {\mathrm{443}}^1\times {\mathrm{78427}}^1$

素因数の和:78874

約数の個数: 12

約数和(自身を含む): 243754224

約数和(自身を除く): 104781580

約数列:

[1, 2, 4, 443, 886, 1772, 78427, 156854, 313708, 34743161, 69486322, 138972644]

約数ペア:

[(1, 138972644), (2, 69486322), (4, 34743161), (443, 313708), (886, 156854), (1772, 78427)]