21242168

素因数分解:

$2^3\times {\mathrm{523}}^1\times {\mathrm{5077}}^1$

素因数の和:5606

約数の個数: 16

約数和(自身を含む): 39913080

約数和(自身を除く): 18670912

約数列:

[1, 2, 4, 8, 523, 1046, 2092, 4184, 5077, 10154, 20308, 40616, 2655271, 5310542, 10621084, 21242168]

約数ペア:

[(1, 21242168), (2, 10621084), (4, 5310542), (8, 2655271), (523, 40616), (1046, 20308), (2092, 10154), (4184, 5077)]