28238067

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{593}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 49297248

約数和(自身を除く): 21059181

約数列:

[1, 3, 9, 11, 13, 33, 37, 39, 99, 111, 117, 143, 333, 407, 429, 481, 593, 1221, 1287, 1443, 1779, 3663, 4329, 5291, 5337, 6523, 7709, 15873, 19569, 21941, 23127, 47619, 58707, 65823, 69381, 84799, 197469, 241351, 254397, 285233, 724053, 763191, 855699, 2172159, 2567097, 3137563, 9412689, 28238067]

約数ペア:

[(1, 28238067), (3, 9412689), (9, 3137563), (11, 2567097), (13, 2172159), (33, 855699), (37, 763191), (39, 724053), (99, 285233), (111, 254397), (117, 241351), (143, 197469), (333, 84799), (407, 69381), (429, 65823), (481, 58707), (593, 47619), (1221, 23127), (1287, 21941), (1443, 19569), (1779, 15873), (3663, 7709), (4329, 6523), (5291, 5337)]