21080420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45827}}^1$

素因数の和:45859

約数の個数: 24

約数和(自身を含む): 46194624

約数和(自身を除く): 25114204

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45827, 91654, 183308, 229135, 458270, 916540, 1054021, 2108042, 4216084, 5270105, 10540210, 21080420]

約数ペア:

[(1, 21080420), (2, 10540210), (4, 5270105), (5, 4216084), (10, 2108042), (20, 1054021), (23, 916540), (46, 458270), (92, 229135), (115, 183308), (230, 91654), (460, 45827)]