18820564

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2081}}^1$

素因数の和:2128

約数の個数: 48

約数和(自身を含む): 41973120

約数和(自身を除く): 23152556

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 323, 476, 532, 646, 1292, 2081, 2261, 4162, 4522, 8324, 9044, 14567, 29134, 35377, 39539, 58268, 70754, 79078, 141508, 158156, 247639, 276773, 495278, 553546, 672163, 990556, 1107092, 1344326, 2688652, 4705141, 9410282, 18820564]

約数ペア:

[(1, 18820564), (2, 9410282), (4, 4705141), (7, 2688652), (14, 1344326), (17, 1107092), (19, 990556), (28, 672163), (34, 553546), (38, 495278), (68, 276773), (76, 247639), (119, 158156), (133, 141508), (238, 79078), (266, 70754), (323, 58268), (476, 39539), (532, 35377), (646, 29134), (1292, 14567), (2081, 9044), (2261, 8324), (4162, 4522)]