28242873

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 17883207

約数列:

[1, 3, 9, 19, 23, 43, 57, 69, 129, 167, 171, 207, 387, 437, 501, 817, 989, 1311, 1503, 2451, 2967, 3173, 3841, 3933, 7181, 7353, 8901, 9519, 11523, 18791, 21543, 28557, 34569, 56373, 64629, 72979, 136439, 165163, 169119, 218937, 409317, 495489, 656811, 1227951, 1486467, 3138097, 9414291, 28242873]

約数ペア:

[(1, 28242873), (3, 9414291), (9, 3138097), (19, 1486467), (23, 1227951), (43, 656811), (57, 495489), (69, 409317), (129, 218937), (167, 169119), (171, 165163), (207, 136439), (387, 72979), (437, 64629), (501, 56373), (817, 34569), (989, 28557), (1311, 21543), (1503, 18791), (2451, 11523), (2967, 9519), (3173, 8901), (3841, 7353), (3933, 7181)]