21020392

素因数分解:

$2^3\times {\mathrm{419}}^1\times {\mathrm{6271}}^1$

素因数の和:6696

約数の個数: 16

約数和(自身を含む): 39513600

約数和(自身を除く): 18493208

約数列:

[1, 2, 4, 8, 419, 838, 1676, 3352, 6271, 12542, 25084, 50168, 2627549, 5255098, 10510196, 21020392]

約数ペア:

[(1, 21020392), (2, 10510196), (4, 5255098), (8, 2627549), (419, 50168), (838, 25084), (1676, 12542), (3352, 6271)]