217202288

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{315701}}^1$

素因数の和:315752

約数の個数: 20

約数和(自身を含む): 430617528

約数和(自身を除く): 213415240

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 315701, 631402, 1262804, 2525608, 5051216, 13575143, 27150286, 54300572, 108601144, 217202288]

約数ペア:

[(1, 217202288), (2, 108601144), (4, 54300572), (8, 27150286), (16, 13575143), (43, 5051216), (86, 2525608), (172, 1262804), (344, 631402), (688, 315701)]