21124184

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64403}}^1$

素因数の和:64450

約数の個数: 16

約数和(自身を含む): 40574520

約数和(自身を除く): 19450336

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64403, 128806, 257612, 515224, 2640523, 5281046, 10562092, 21124184]

約数ペア:

[(1, 21124184), (2, 10562092), (4, 5281046), (8, 2640523), (41, 515224), (82, 257612), (164, 128806), (328, 64403)]