219272207

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1193}}^1$

素因数の和:1260

約数の個数: 36

約数和(自身を含む): 289654848

約数和(自身を除く): 70382641

約数列:

[1, 7, 11, 31, 49, 77, 121, 217, 341, 539, 847, 1193, 1519, 2387, 3751, 5929, 8351, 13123, 16709, 26257, 36983, 58457, 91861, 144353, 183799, 258881, 406813, 643027, 1010471, 1812167, 2847691, 4474943, 7073297, 19933837, 31324601, 219272207]

約数ペア:

[(1, 219272207), (7, 31324601), (11, 19933837), (31, 7073297), (49, 4474943), (77, 2847691), (121, 1812167), (217, 1010471), (341, 643027), (539, 406813), (847, 258881), (1193, 183799), (1519, 144353), (2387, 91861), (3751, 58457), (5929, 36983), (8351, 26257), (13123, 16709)]