18888911

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 20528640

約数和(自身を除く): 1639729

約数列:

[1, 23, 43, 71, 269, 989, 1633, 3053, 6187, 11567, 19099, 70219, 266041, 439277, 821257, 18888911]

約数ペア:

[(1, 18888911), (23, 821257), (43, 439277), (71, 266041), (269, 70219), (989, 19099), (1633, 11567), (3053, 6187)]