20448477

素因数分解:

$3^3\times 7^1\times {\mathrm{108193}}^1$

素因数の和:108209

約数の個数: 16

約数和(自身を含む): 34622080

約数和(自身を除く): 14173603

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 108193, 324579, 757351, 973737, 2272053, 2921211, 6816159, 20448477]

約数ペア:

[(1, 20448477), (3, 6816159), (7, 2921211), (9, 2272053), (21, 973737), (27, 757351), (63, 324579), (189, 108193)]