19954352

素因数分解:

$2^4\times {\mathrm{11}}^3\times {\mathrm{937}}^1$

素因数の和:978

約数の個数: 40

約数和(自身を含む): 42570192

約数和(自身を除く): 22615840

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 121, 176, 242, 484, 937, 968, 1331, 1874, 1936, 2662, 3748, 5324, 7496, 10307, 10648, 14992, 20614, 21296, 41228, 82456, 113377, 164912, 226754, 453508, 907016, 1247147, 1814032, 2494294, 4988588, 9977176, 19954352]

約数ペア:

[(1, 19954352), (2, 9977176), (4, 4988588), (8, 2494294), (11, 1814032), (16, 1247147), (22, 907016), (44, 453508), (88, 226754), (121, 164912), (176, 113377), (242, 82456), (484, 41228), (937, 21296), (968, 20614), (1331, 14992), (1874, 10648), (1936, 10307), (2662, 7496), (3748, 5324)]