21285296

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12433}}^1$

素因数の和:12548

約数の個数: 20

約数和(自身を含む): 41629032

約数和(自身を除く): 20343736

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12433, 24866, 49732, 99464, 198928, 1330331, 2660662, 5321324, 10642648, 21285296]

約数ペア:

[(1, 21285296), (2, 10642648), (4, 5321324), (8, 2660662), (16, 1330331), (107, 198928), (214, 99464), (428, 49732), (856, 24866), (1712, 12433)]