28271978

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{15901}}^1$

素因数の和:16037

約数の個数: 16

約数和(自身を含む): 48850944

約数和(自身を除く): 20578966

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 15901, 31802, 111307, 222614, 2019427, 4038854, 14135989, 28271978]

約数ペア:

[(1, 28271978), (2, 14135989), (7, 4038854), (14, 2019427), (127, 222614), (254, 111307), (889, 31802), (1778, 15901)]