208142781

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53003}}^1$

素因数の和:53041

約数の個数: 32

約数和(自身を含む): 366363648

約数和(自身を除く): 158220867

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 53003, 159009, 371021, 583033, 901051, 1113063, 1749099, 2703153, 4081231, 6307357, 9911561, 12243693, 18922071, 29734683, 69380927, 208142781]

約数ペア:

[(1, 208142781), (3, 69380927), (7, 29734683), (11, 18922071), (17, 12243693), (21, 9911561), (33, 6307357), (51, 4081231), (77, 2703153), (119, 1749099), (187, 1113063), (231, 901051), (357, 583033), (561, 371021), (1309, 159009), (3927, 53003)]