20861701

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 25670520

約数和(自身を除く): 4808819

約数列:

[1, 7, 29, 49, 53, 203, 277, 371, 1421, 1537, 1939, 2597, 8033, 10759, 13573, 14681, 56231, 75313, 102767, 393617, 425749, 719369, 2980243, 20861701]

約数ペア:

[(1, 20861701), (7, 2980243), (29, 719369), (49, 425749), (53, 393617), (203, 102767), (277, 75313), (371, 56231), (1421, 14681), (1537, 13573), (1939, 10759), (2597, 8033)]