18015389

素因数分解:

$7^3\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1065

約数の個数: 16

約数和(自身を含む): 21427200

約数和(自身を除く): 3411811

約数列:

[1, 7, 49, 53, 343, 371, 991, 2597, 6937, 18179, 48559, 52523, 339913, 367661, 2573627, 18015389]

約数ペア:

[(1, 18015389), (7, 2573627), (49, 367661), (53, 339913), (343, 52523), (371, 48559), (991, 18179), (2597, 6937)]