16817983

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 22256640

約数和(自身を除く): 5438657

約数列:

[1, 7, 13, 19, 71, 91, 133, 137, 247, 497, 923, 959, 1349, 1729, 1781, 2603, 6461, 9443, 9727, 12467, 17537, 18221, 33839, 68089, 122759, 126451, 184813, 236873, 885157, 1293691, 2402569, 16817983]

約数ペア:

[(1, 16817983), (7, 2402569), (13, 1293691), (19, 885157), (71, 236873), (91, 184813), (133, 126451), (137, 122759), (247, 68089), (497, 33839), (923, 18221), (959, 17537), (1349, 12467), (1729, 9727), (1781, 9443), (2603, 6461)]