19817930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2689}}^1$

素因数の和:2774

約数の個数: 32

約数和(自身を含む): 39510720

約数和(自身を除く): 19692790

約数列:

[1, 2, 5, 10, 11, 22, 55, 67, 110, 134, 335, 670, 737, 1474, 2689, 3685, 5378, 7370, 13445, 26890, 29579, 59158, 147895, 180163, 295790, 360326, 900815, 1801630, 1981793, 3963586, 9908965, 19817930]

約数ペア:

[(1, 19817930), (2, 9908965), (5, 3963586), (10, 1981793), (11, 1801630), (22, 900815), (55, 360326), (67, 295790), (110, 180163), (134, 147895), (335, 59158), (670, 29579), (737, 26890), (1474, 13445), (2689, 7370), (3685, 5378)]