81519957

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{547}}^1\times {\mathrm{571}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 122247840

約数和(自身を除く): 40727883

約数列:

[1, 3, 9, 29, 87, 261, 547, 571, 1641, 1713, 4923, 5139, 15863, 16559, 47589, 49677, 142767, 149031, 312337, 937011, 2811033, 9057773, 27173319, 81519957]

約数ペア:

[(1, 81519957), (3, 27173319), (9, 9057773), (29, 2811033), (87, 937011), (261, 312337), (547, 149031), (571, 142767), (1641, 49677), (1713, 47589), (4923, 16559), (5139, 15863)]