347391681

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{1979}}^1$

素因数の和:2645

約数の個数: 32

約数和(自身を含む): 571253760

約数和(自身を除く): 223862079

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 643, 1929, 1979, 4501, 5937, 8359, 13503, 13853, 25077, 25727, 41559, 58513, 77181, 175539, 180089, 540267, 1272497, 3817491, 8907479, 16542461, 26722437, 49627383, 115797227, 347391681]

約数ペア:

[(1, 347391681), (3, 115797227), (7, 49627383), (13, 26722437), (21, 16542461), (39, 8907479), (91, 3817491), (273, 1272497), (643, 540267), (1929, 180089), (1979, 175539), (4501, 77181), (5937, 58513), (8359, 41559), (13503, 25727), (13853, 25077)]