20417103

素因数分解:

$3^6\times 7^1\times {\mathrm{4001}}^1$

素因数の和:4026

約数の個数: 28

約数和(自身を含む): 34993488

約数和(自身を除く): 14576385

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 4001, 5103, 12003, 28007, 36009, 84021, 108027, 252063, 324081, 756189, 972243, 2268567, 2916729, 6805701, 20417103]

約数ペア:

[(1, 20417103), (3, 6805701), (7, 2916729), (9, 2268567), (21, 972243), (27, 756189), (63, 324081), (81, 252063), (189, 108027), (243, 84021), (567, 36009), (729, 28007), (1701, 12003), (4001, 5103)]