20238955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12689}}^1$

素因数の和:12734

約数の個数: 16

約数和(自身を含む): 27410400

約数和(自身を除く): 7171445

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 12689, 63445, 139579, 367981, 697895, 1839905, 4047791, 20238955]

約数ペア:

[(1, 20238955), (5, 4047791), (11, 1839905), (29, 697895), (55, 367981), (145, 139579), (319, 63445), (1595, 12689)]