21888486571

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{18131}}^1$

素因数の和:18499

約数の個数: 32

約数和(自身を含む): 27328550400

約数和(自身を除く): 5440063829

約数列:

[1, 7, 19, 29, 133, 203, 313, 551, 2191, 3857, 5947, 9077, 18131, 41629, 63539, 126917, 172463, 344489, 525799, 1207241, 2411423, 3680593, 5675003, 9990181, 39725021, 69931267, 107825057, 164575087, 754775399, 1152025609, 3126926653, 21888486571]

約数ペア:

[(1, 21888486571), (7, 3126926653), (19, 1152025609), (29, 754775399), (133, 164575087), (203, 107825057), (313, 69931267), (551, 39725021), (2191, 9990181), (3857, 5675003), (5947, 3680593), (9077, 2411423), (18131, 1207241), (41629, 525799), (63539, 344489), (126917, 172463)]