128860417

素因数分解:

$7^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 154821888

約数和(自身を除く): 25961471

約数列:

[1, 7, 41, 47, 233, 287, 329, 1631, 1681, 1927, 9553, 10951, 11767, 13489, 66871, 76657, 79007, 391673, 448991, 553049, 2741711, 3142937, 18408631, 128860417]

約数ペア:

[(1, 128860417), (7, 18408631), (41, 3142937), (47, 2741711), (233, 553049), (287, 448991), (329, 391673), (1631, 79007), (1681, 76657), (1927, 66871), (9553, 13489), (10951, 11767)]