20972710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5153}}^1$

素因数の和:5208

約数の個数: 32

約数和(自身を含む): 42304032

約数和(自身を除く): 21331322

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 5153, 10306, 25765, 51530, 56683, 113366, 190661, 283415, 381322, 566830, 953305, 1906610, 2097271, 4194542, 10486355, 20972710]

約数ペア:

[(1, 20972710), (2, 10486355), (5, 4194542), (10, 2097271), (11, 1906610), (22, 953305), (37, 566830), (55, 381322), (74, 283415), (110, 190661), (185, 113366), (370, 56683), (407, 51530), (814, 25765), (2035, 10306), (4070, 5153)]