873668257

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1\times {\mathrm{641}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 1128112128

約数和(自身を除く): 254443871

約数列:

[1, 7, 11, 31, 77, 217, 341, 571, 641, 2387, 3997, 4487, 6281, 7051, 17701, 19871, 43967, 49357, 123907, 139097, 194711, 218581, 366011, 1362977, 1530067, 2562077, 4026121, 11346341, 28182847, 79424387, 124809751, 873668257]

約数ペア:

[(1, 873668257), (7, 124809751), (11, 79424387), (31, 28182847), (77, 11346341), (217, 4026121), (341, 2562077), (571, 1530067), (641, 1362977), (2387, 366011), (3997, 218581), (4487, 194711), (6281, 139097), (7051, 123907), (17701, 49357), (19871, 43967)]