20902296961

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{800333}}^1$

素因数の和:800401

約数の個数: 24

約数和(自身を含む): 26823994344

約数和(自身を除く): 5921697383

約数列:

[1, 7, 13, 41, 49, 91, 287, 533, 637, 2009, 3731, 26117, 800333, 5602331, 10404329, 32813653, 39216317, 72830303, 229695571, 426577489, 509812121, 1607868997, 2986042423, 20902296961]

約数ペア:

[(1, 20902296961), (7, 2986042423), (13, 1607868997), (41, 509812121), (49, 426577489), (91, 229695571), (287, 72830303), (533, 39216317), (637, 32813653), (2009, 10404329), (3731, 5602331), (26117, 800333)]