19748036

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 43596672

約数和(自身を除く): 23848636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 97, 154, 194, 308, 388, 661, 679, 1067, 1322, 1358, 2134, 2644, 2716, 4268, 4627, 7271, 7469, 9254, 14542, 14938, 18508, 29084, 29876, 50897, 64117, 101794, 128234, 203588, 256468, 448819, 705287, 897638, 1410574, 1795276, 2821148, 4937009, 9874018, 19748036]

約数ペア:

[(1, 19748036), (2, 9874018), (4, 4937009), (7, 2821148), (11, 1795276), (14, 1410574), (22, 897638), (28, 705287), (44, 448819), (77, 256468), (97, 203588), (154, 128234), (194, 101794), (308, 64117), (388, 50897), (661, 29876), (679, 29084), (1067, 18508), (1322, 14938), (1358, 14542), (2134, 9254), (2644, 7469), (2716, 7271), (4268, 4627)]