328570249

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2903}}^1$

素因数の和:2989

約数の個数: 32

約数和(自身を含む): 423751680

約数和(自身を除く): 95181431

約数列:

[1, 7, 19, 23, 37, 133, 161, 259, 437, 703, 851, 2903, 3059, 4921, 5957, 16169, 20321, 55157, 66769, 107411, 113183, 386099, 467383, 751877, 1268611, 2040809, 2470453, 8880277, 14285663, 17293171, 46938607, 328570249]

約数ペア:

[(1, 328570249), (7, 46938607), (19, 17293171), (23, 14285663), (37, 8880277), (133, 2470453), (161, 2040809), (259, 1268611), (437, 751877), (703, 467383), (851, 386099), (2903, 113183), (3059, 107411), (4921, 66769), (5957, 55157), (16169, 20321)]