19800054

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15493}}^1$

素因数の和:15572

約数の個数: 24

約数和(自身を含む): 43507152

約数和(自身を除く): 23707098

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 15493, 30986, 46479, 92958, 139437, 278874, 1100003, 2200006, 3300009, 6600018, 9900027, 19800054]

約数ペア:

[(1, 19800054), (2, 9900027), (3, 6600018), (6, 3300009), (9, 2200006), (18, 1100003), (71, 278874), (142, 139437), (213, 92958), (426, 46479), (639, 30986), (1278, 15493)]