21266513

素因数分解:

${\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:364

約数の個数: 16

約数和(自身を含む): 23003136

約数和(自身を除く): 1736623

約数列:

[1, 23, 47, 103, 191, 1081, 2369, 4393, 4841, 8977, 19673, 111343, 206471, 452479, 924631, 21266513]

約数ペア:

[(1, 21266513), (23, 924631), (47, 452479), (103, 206471), (191, 111343), (1081, 19673), (2369, 8977), (4393, 4841)]