20403243

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8753}}^1$

素因数の和:8803

約数の個数: 24

約数和(自身を含む): 34595808

約数和(自身を除く): 14192565

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8753, 26259, 61271, 78777, 183813, 323861, 551439, 971583, 2267027, 2914749, 6801081, 20403243]

約数ペア:

[(1, 20403243), (3, 6801081), (7, 2914749), (9, 2267027), (21, 971583), (37, 551439), (63, 323861), (111, 183813), (259, 78777), (333, 61271), (777, 26259), (2331, 8753)]