21200118

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{82171}}^1$

素因数の和:82219

約数の個数: 16

約数和(自身を含む): 43386816

約数和(自身を除く): 22186698

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 82171, 164342, 246513, 493026, 3533353, 7066706, 10600059, 21200118]

約数ペア:

[(1, 21200118), (2, 10600059), (3, 7066706), (6, 3533353), (43, 493026), (86, 246513), (129, 164342), (258, 82171)]