21201903

素因数分解:

$3^2\times {\mathrm{607}}^1\times {\mathrm{3881}}^1$

素因数の和:4494

約数の個数: 12

約数和(自身を含む): 30683328

約数和(自身を除く): 9481425

約数列:

[1, 3, 9, 607, 1821, 3881, 5463, 11643, 34929, 2355767, 7067301, 21201903]

約数ペア:

[(1, 21201903), (3, 7067301), (9, 2355767), (607, 34929), (1821, 11643), (3881, 5463)]