20951275

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 27498240

約数和(自身を除く): 6546965

約数列:

[1, 5, 23, 25, 83, 115, 415, 439, 575, 1909, 2075, 2195, 9545, 10097, 10975, 36437, 47725, 50485, 182185, 252425, 838051, 910925, 4190255, 20951275]

約数ペア:

[(1, 20951275), (5, 4190255), (23, 910925), (25, 838051), (83, 252425), (115, 182185), (415, 50485), (439, 47725), (575, 36437), (1909, 10975), (2075, 10097), (2195, 9545)]