388441438

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{19861}}^1$

素因数の和:20008

約数の個数: 32

約数和(自身を含む): 732192768

約数和(自身を除く): 343751330

約数列:

[1, 2, 7, 11, 14, 22, 77, 127, 154, 254, 889, 1397, 1778, 2794, 9779, 19558, 19861, 39722, 139027, 218471, 278054, 436942, 1529297, 2522347, 3058594, 5044694, 17656429, 27745817, 35312858, 55491634, 194220719, 388441438]

約数ペア:

[(1, 388441438), (2, 194220719), (7, 55491634), (11, 35312858), (14, 27745817), (22, 17656429), (77, 5044694), (127, 3058594), (154, 2522347), (254, 1529297), (889, 436942), (1397, 278054), (1778, 218471), (2794, 139027), (9779, 39722), (19558, 19861)]