18848133

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:399

約数の個数: 40

約数和(自身を含む): 30530720

約数和(自身を除く): 11682587

約数列:

[1, 3, 9, 19, 27, 37, 57, 81, 111, 171, 331, 333, 513, 703, 993, 999, 1539, 2109, 2979, 2997, 6289, 6327, 8937, 12247, 18867, 18981, 26811, 36741, 56601, 56943, 110223, 169803, 232693, 330669, 509409, 698079, 992007, 2094237, 6282711, 18848133]

約数ペア:

[(1, 18848133), (3, 6282711), (9, 2094237), (19, 992007), (27, 698079), (37, 509409), (57, 330669), (81, 232693), (111, 169803), (171, 110223), (331, 56943), (333, 56601), (513, 36741), (703, 26811), (993, 18981), (999, 18867), (1539, 12247), (2109, 8937), (2979, 6327), (2997, 6289)]