20727833

素因数分解:

$7^4\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 20

約数和(自身を含む): 24704820

約数和(自身を除く): 3976987

約数列:

[1, 7, 49, 89, 97, 343, 623, 679, 2401, 4361, 4753, 8633, 30527, 33271, 60431, 213689, 232897, 423017, 2961119, 20727833]

約数ペア:

[(1, 20727833), (7, 2961119), (49, 423017), (89, 232897), (97, 213689), (343, 60431), (623, 33271), (679, 30527), (2401, 8633), (4361, 4753)]