21503999

素因数分解:

${\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{4133}}^1$

素因数の和:4198

約数の個数: 12

約数和(自身を含む): 24192168

約数和(自身を除く): 2688169

約数列:

[1, 11, 43, 121, 473, 4133, 5203, 45463, 177719, 500093, 1954909, 21503999]

約数ペア:

[(1, 21503999), (11, 1954909), (43, 500093), (121, 177719), (473, 45463), (4133, 5203)]