18516885

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 11965035

約数列:

[1, 3, 5, 15, 83, 107, 139, 249, 321, 415, 417, 535, 695, 1245, 1605, 2085, 8881, 11537, 14873, 26643, 34611, 44405, 44619, 57685, 74365, 133215, 173055, 223095, 1234459, 3703377, 6172295, 18516885]

約数ペア:

[(1, 18516885), (3, 6172295), (5, 3703377), (15, 1234459), (83, 223095), (107, 173055), (139, 133215), (249, 74365), (321, 57685), (415, 44619), (417, 44405), (535, 34611), (695, 26643), (1245, 14873), (1605, 11537), (2085, 8881)]