20907676

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{14479}}^1$

素因数の和:14521

約数の個数: 18

約数和(自身を含む): 38618160

約数和(自身を除く): 17710484

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 14479, 28958, 57916, 275101, 550202, 1100404, 5226919, 10453838, 20907676]

約数ペア:

[(1, 20907676), (2, 10453838), (4, 5226919), (19, 1100404), (38, 550202), (76, 275101), (361, 57916), (722, 28958), (1444, 14479)]