19146820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12433}}^1$

素因数の和:12460

約数の個数: 48

約数和(自身を含む): 50133888

約数和(自身を除く): 30987068

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12433, 24866, 49732, 62165, 87031, 124330, 136763, 174062, 248660, 273526, 348124, 435155, 547052, 683815, 870310, 957341, 1367630, 1740620, 1914682, 2735260, 3829364, 4786705, 9573410, 19146820]

約数ペア:

[(1, 19146820), (2, 9573410), (4, 4786705), (5, 3829364), (7, 2735260), (10, 1914682), (11, 1740620), (14, 1367630), (20, 957341), (22, 870310), (28, 683815), (35, 547052), (44, 435155), (55, 348124), (70, 273526), (77, 248660), (110, 174062), (140, 136763), (154, 124330), (220, 87031), (308, 62165), (385, 49732), (770, 24866), (1540, 12433)]