13218191

素因数分解:

$7^3\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:543

約数の個数: 16

約数和(自身を含む): 15624000

約数和(自身を除く): 2405809

約数列:

[1, 7, 49, 89, 343, 433, 623, 3031, 4361, 21217, 30527, 38537, 148519, 269759, 1888313, 13218191]

約数ペア:

[(1, 13218191), (7, 1888313), (49, 269759), (89, 148519), (343, 38537), (433, 30527), (623, 21217), (3031, 4361)]