20449989

素因数分解:

$3^4\times 7^1\times {\mathrm{36067}}^1$

素因数の和:36086

約数の個数: 20

約数和(自身を含む): 34913824

約数和(自身を除く): 14463835

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 36067, 108201, 252469, 324603, 757407, 973809, 2272221, 2921427, 6816663, 20449989]

約数ペア:

[(1, 20449989), (3, 6816663), (7, 2921427), (9, 2272221), (21, 973809), (27, 757407), (63, 324603), (81, 252469), (189, 108201), (567, 36067)]