21525749

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 26615808

約数和(自身を除く): 5090059

約数列:

[1, 7, 31, 37, 49, 217, 259, 383, 1147, 1519, 1813, 2681, 8029, 11873, 14171, 18767, 56203, 83111, 99197, 439301, 581777, 694379, 3075107, 21525749]

約数ペア:

[(1, 21525749), (7, 3075107), (31, 694379), (37, 581777), (49, 439301), (217, 99197), (259, 83111), (383, 56203), (1147, 18767), (1519, 14171), (1813, 11873), (2681, 8029)]