218013985

素因数分解:

$5^1\times 7^2\times {\mathrm{439}}^1\times {\mathrm{2027}}^1$

素因数の和:2485

約数の個数: 24

約数和(自身を含む): 305173440

約数和(自身を除く): 87159455

約数列:

[1, 5, 7, 35, 49, 245, 439, 2027, 2195, 3073, 10135, 14189, 15365, 21511, 70945, 99323, 107555, 496615, 889853, 4449265, 6228971, 31144855, 43602797, 218013985]

約数ペア:

[(1, 218013985), (5, 43602797), (7, 31144855), (35, 6228971), (49, 4449265), (245, 889853), (439, 496615), (2027, 107555), (2195, 99323), (3073, 70945), (10135, 21511), (14189, 15365)]