21949918

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{839}}^1$

素因数の和:1071

約数の個数: 16

約数和(自身を含む): 33546240

約数和(自身を除く): 11596322

約数列:

[1, 2, 103, 127, 206, 254, 839, 1678, 13081, 26162, 86417, 106553, 172834, 213106, 10974959, 21949918]

約数ペア:

[(1, 21949918), (2, 10974959), (103, 213106), (127, 172834), (206, 106553), (254, 86417), (839, 26162), (1678, 13081)]