28663481

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:210

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 8661319

約数列:

[1, 7, 11, 49, 71, 77, 107, 343, 497, 539, 749, 781, 1177, 3479, 3773, 5243, 5467, 7597, 8239, 24353, 36701, 38269, 53179, 57673, 83567, 267883, 372253, 403711, 584969, 2605771, 4094783, 28663481]

約数ペア:

[(1, 28663481), (7, 4094783), (11, 2605771), (49, 584969), (71, 403711), (77, 372253), (107, 267883), (343, 83567), (497, 57673), (539, 53179), (749, 38269), (781, 36701), (1177, 24353), (3479, 8239), (3773, 7597), (5243, 5467)]