208425959

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{677}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 249189408

約数和(自身を除く): 40763449

約数列:

[1, 7, 49, 61, 103, 427, 677, 721, 2989, 4739, 5047, 6283, 33173, 41297, 43981, 69731, 289079, 307867, 488117, 2023553, 3416819, 4253591, 29775137, 208425959]

約数ペア:

[(1, 208425959), (7, 29775137), (49, 4253591), (61, 3416819), (103, 2023553), (427, 488117), (677, 307867), (721, 289079), (2989, 69731), (4739, 43981), (5047, 41297), (6283, 33173)]