2678221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1549}}^1$

素因数の和:1588

約数の個数: 16

約数和(自身を含む): 3472000

約数和(自身を除く): 793779

約数列:

[1, 7, 13, 19, 91, 133, 247, 1549, 1729, 10843, 20137, 29431, 140959, 206017, 382603, 2678221]

約数ペア:

[(1, 2678221), (7, 382603), (13, 206017), (19, 140959), (91, 29431), (133, 20137), (247, 10843), (1549, 1729)]