20729644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3947}}^1$

素因数の和:4065

約数の個数: 24

約数和(自身を含む): 39464208

約数和(自身を除く): 18734564

約数列:

[1, 2, 4, 13, 26, 52, 101, 202, 404, 1313, 2626, 3947, 5252, 7894, 15788, 51311, 102622, 205244, 398647, 797294, 1594588, 5182411, 10364822, 20729644]

約数ペア:

[(1, 20729644), (2, 10364822), (4, 5182411), (13, 1594588), (26, 797294), (52, 398647), (101, 205244), (202, 102622), (404, 51311), (1313, 15788), (2626, 7894), (3947, 5252)]