21141813

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4817}}^1$

素因数の和:4857

約数の個数: 32

約数和(自身を含む): 37002240

約数和(自身を除く): 15860427

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 4817, 14451, 33719, 52987, 91523, 101157, 158961, 274569, 370909, 640661, 1006753, 1112727, 1921983, 3020259, 7047271, 21141813]

約数ペア:

[(1, 21141813), (3, 7047271), (7, 3020259), (11, 1921983), (19, 1112727), (21, 1006753), (33, 640661), (57, 370909), (77, 274569), (133, 158961), (209, 101157), (231, 91523), (399, 52987), (627, 33719), (1463, 14451), (4389, 4817)]