67518521

素因数分解:

$7^4\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:550

約数の個数: 20

約数和(自身を含む): 80231844

約数和(自身を除く): 12713323

約数列:

[1, 7, 49, 61, 343, 427, 461, 2401, 2989, 3227, 20923, 22589, 28121, 146461, 158123, 196847, 1106861, 1377929, 9645503, 67518521]

約数ペア:

[(1, 67518521), (7, 9645503), (49, 1377929), (61, 1106861), (343, 196847), (427, 158123), (461, 146461), (2401, 28121), (2989, 22589), (3227, 20923)]