21542276

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40493}}^1$

素因数の和:40523

約数の個数: 24

約数和(自身を含む): 45353280

約数和(自身を除く): 23811004

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40493, 80986, 161972, 283451, 566902, 769367, 1133804, 1538734, 3077468, 5385569, 10771138, 21542276]

約数ペア:

[(1, 21542276), (2, 10771138), (4, 5385569), (7, 3077468), (14, 1538734), (19, 1133804), (28, 769367), (38, 566902), (76, 283451), (133, 161972), (266, 80986), (532, 40493)]