208689404

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{677563}}^1$

素因数の和:677585

約数の個数: 24

約数和(自身を含む): 455323008

約数和(自身を除く): 246633604

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 677563, 1355126, 2710252, 4742941, 7453193, 9485882, 14906386, 18971764, 29812772, 52172351, 104344702, 208689404]

約数ペア:

[(1, 208689404), (2, 104344702), (4, 52172351), (7, 29812772), (11, 18971764), (14, 14906386), (22, 9485882), (28, 7453193), (44, 4742941), (77, 2710252), (154, 1355126), (308, 677563)]