20127877

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 25855200

約数和(自身を除く): 5727323

約数列:

[1, 7, 11, 49, 77, 107, 349, 539, 749, 1177, 2443, 3839, 5243, 8239, 17101, 26873, 37343, 57673, 188111, 261401, 410773, 1829807, 2875411, 20127877]

約数ペア:

[(1, 20127877), (7, 2875411), (11, 1829807), (49, 410773), (77, 261401), (107, 188111), (349, 57673), (539, 37343), (749, 26873), (1177, 17101), (2443, 8239), (3839, 5243)]