19783016

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 21585304

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 107, 121, 191, 214, 242, 382, 428, 484, 764, 856, 968, 1177, 1528, 2101, 2354, 4202, 4708, 8404, 9416, 12947, 16808, 20437, 23111, 25894, 40874, 46222, 51788, 81748, 92444, 103576, 163496, 184888, 224807, 449614, 899228, 1798456, 2472877, 4945754, 9891508, 19783016]

約数ペア:

[(1, 19783016), (2, 9891508), (4, 4945754), (8, 2472877), (11, 1798456), (22, 899228), (44, 449614), (88, 224807), (107, 184888), (121, 163496), (191, 103576), (214, 92444), (242, 81748), (382, 51788), (428, 46222), (484, 40874), (764, 25894), (856, 23111), (968, 20437), (1177, 16808), (1528, 12947), (2101, 9416), (2354, 8404), (4202, 4708)]