28268863

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2473}}^1$

素因数の和:2574

約数の個数: 16

約数和(自身を含む): 34200576

約数和(自身を除く): 5931713

約数列:

[1, 7, 23, 71, 161, 497, 1633, 2473, 11431, 17311, 56879, 175583, 398153, 1229081, 4038409, 28268863]

約数ペア:

[(1, 28268863), (7, 4038409), (23, 1229081), (71, 398153), (161, 175583), (497, 56879), (1633, 17311), (2473, 11431)]