521103987

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 798720000

約数和(自身を除く): 277616013

約数列:

[1, 3, 9, 29, 79, 87, 127, 199, 237, 261, 381, 597, 711, 1143, 1791, 2291, 3683, 5771, 6873, 10033, 11049, 15721, 17313, 20619, 25273, 30099, 33147, 47163, 51939, 75819, 90297, 141489, 227457, 290957, 455909, 732917, 872871, 1367727, 1996567, 2198751, 2618613, 4103181, 5989701, 6596253, 17969103, 57900443, 173701329, 521103987]

約数ペア:

[(1, 521103987), (3, 173701329), (9, 57900443), (29, 17969103), (79, 6596253), (87, 5989701), (127, 4103181), (199, 2618613), (237, 2198751), (261, 1996567), (381, 1367727), (597, 872871), (711, 732917), (1143, 455909), (1791, 290957), (2291, 227457), (3683, 141489), (5771, 90297), (6873, 75819), (10033, 51939), (11049, 47163), (15721, 33147), (17313, 30099), (20619, 25273)]