287564319

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{1471}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 496005120

約数和(自身を除く): 208440801

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 107, 203, 261, 321, 609, 749, 963, 1471, 1827, 2247, 3103, 4413, 6741, 9309, 10297, 13239, 21721, 27927, 30891, 42659, 65163, 92673, 127977, 157397, 195489, 298613, 383931, 472191, 895839, 1101779, 1416573, 2687517, 3305337, 4564513, 9916011, 13693539, 31951591, 41080617, 95854773, 287564319]

約数ペア:

[(1, 287564319), (3, 95854773), (7, 41080617), (9, 31951591), (21, 13693539), (29, 9916011), (63, 4564513), (87, 3305337), (107, 2687517), (203, 1416573), (261, 1101779), (321, 895839), (609, 472191), (749, 383931), (963, 298613), (1471, 195489), (1827, 157397), (2247, 127977), (3103, 92673), (4413, 65163), (6741, 42659), (9309, 30891), (10297, 27927), (13239, 21721)]