20804848

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68437}}^1$

素因数の和:68464

約数の個数: 20

約数和(自身を含む): 42431560

約数和(自身を除く): 21626712

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68437, 136874, 273748, 547496, 1094992, 1300303, 2600606, 5201212, 10402424, 20804848]

約数ペア:

[(1, 20804848), (2, 10402424), (4, 5201212), (8, 2600606), (16, 1300303), (19, 1094992), (38, 547496), (76, 273748), (152, 136874), (304, 68437)]