81669951

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1291}}^1$

素因数の和:1385

約数の個数: 40

約数和(自身を含む): 135070848

約数和(自身を除く): 53400897

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 213, 297, 639, 781, 891, 1291, 1917, 2343, 3873, 5751, 7029, 11619, 14201, 21087, 34857, 42603, 63261, 91661, 104571, 127809, 274983, 383427, 824949, 1008271, 1150281, 2474847, 3024813, 7424541, 9074439, 27223317, 81669951]

約数ペア:

[(1, 81669951), (3, 27223317), (9, 9074439), (11, 7424541), (27, 3024813), (33, 2474847), (71, 1150281), (81, 1008271), (99, 824949), (213, 383427), (297, 274983), (639, 127809), (781, 104571), (891, 91661), (1291, 63261), (1917, 42603), (2343, 34857), (3873, 21087), (5751, 14201), (7029, 11619)]