21190376

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37307}}^1$

素因数の和:37384

約数の個数: 16

約数和(自身を含む): 40292640

約数和(自身を除く): 19102264

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37307, 74614, 149228, 298456, 2648797, 5297594, 10595188, 21190376]

約数ペア:

[(1, 21190376), (2, 10595188), (4, 5297594), (8, 2648797), (71, 298456), (142, 149228), (284, 74614), (568, 37307)]