28111138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{6421}}^1$

素因数の和:6633

約数の個数: 16

約数和(自身を含む): 46238400

約数和(自身を除く): 18127262

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 6421, 12842, 70631, 141262, 1277779, 2555558, 14055569, 28111138]

約数ペア:

[(1, 28111138), (2, 14055569), (11, 2555558), (22, 1277779), (199, 141262), (398, 70631), (2189, 12842), (4378, 6421)]