19797540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47137}}^1$

素因数の和:47156

約数の個数: 48

約数和(自身を含む): 63353472

約数和(自身を除く): 43555932

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47137, 94274, 141411, 188548, 235685, 282822, 329959, 471370, 565644, 659918, 707055, 942740, 989877, 1319836, 1414110, 1649795, 1979754, 2828220, 3299590, 3959508, 4949385, 6599180, 9898770, 19797540]

約数ペア:

[(1, 19797540), (2, 9898770), (3, 6599180), (4, 4949385), (5, 3959508), (6, 3299590), (7, 2828220), (10, 1979754), (12, 1649795), (14, 1414110), (15, 1319836), (20, 989877), (21, 942740), (28, 707055), (30, 659918), (35, 565644), (42, 471370), (60, 329959), (70, 282822), (84, 235685), (105, 188548), (140, 141411), (210, 94274), (420, 47137)]