20975933

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{449}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 23846400

約数和(自身を除く): 2870467

約数列:

[1, 11, 31, 137, 341, 449, 1507, 4247, 4939, 13919, 46717, 61513, 153109, 676643, 1906903, 20975933]

約数ペア:

[(1, 20975933), (11, 1906903), (31, 676643), (137, 153109), (341, 61513), (449, 46717), (1507, 13919), (4247, 4939)]