2057218974727

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{640457}}^1$

素因数の和:640839

約数の個数: 32

約数和(自身を含む): 2496740972544

約数和(自身を除く): 439521997817

約数列:

[1, 7, 23, 71, 161, 281, 497, 1633, 1967, 6463, 11431, 19951, 45241, 139657, 458873, 640457, 3212111, 4483199, 14730511, 45472447, 103113577, 179968417, 318307129, 1045866281, 1259778919, 4139273591, 7321063967, 12777757607, 28974915137, 89444303249, 293888424961, 2057218974727]

約数ペア:

[(1, 2057218974727), (7, 293888424961), (23, 89444303249), (71, 28974915137), (161, 12777757607), (281, 7321063967), (497, 4139273591), (1633, 1259778919), (1967, 1045866281), (6463, 318307129), (11431, 179968417), (19951, 103113577), (45241, 45472447), (139657, 14730511), (458873, 4483199), (640457, 3212111)]