290806551

素因数分解:

$3^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{5987}}^1$

素因数の和:6260

約数の個数: 32

約数和(自身を含む): 494369280

約数和(自身を除く): 203562729

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 257, 771, 1799, 2313, 5397, 5987, 6939, 16191, 17961, 41909, 48573, 53883, 125727, 161649, 377181, 1131543, 1538659, 4615977, 10770613, 13847931, 32311839, 41543793, 96935517, 290806551]

約数ペア:

[(1, 290806551), (3, 96935517), (7, 41543793), (9, 32311839), (21, 13847931), (27, 10770613), (63, 4615977), (189, 1538659), (257, 1131543), (771, 377181), (1799, 161649), (2313, 125727), (5397, 53883), (5987, 48573), (6939, 41909), (16191, 17961)]