20280267

素因数分解:

$3^3\times 7^2\times {\mathrm{15329}}^1$

素因数の和:15352

約数の個数: 24

約数和(自身を含む): 34952400

約数和(自身を除く): 14672133

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15329, 45987, 107303, 137961, 321909, 413883, 751121, 965727, 2253363, 2897181, 6760089, 20280267]

約数ペア:

[(1, 20280267), (3, 6760089), (7, 2897181), (9, 2253363), (21, 965727), (27, 751121), (49, 413883), (63, 321909), (147, 137961), (189, 107303), (441, 45987), (1323, 15329)]