21000659418

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{3407}}^1\times {\mathrm{4691}}^1$

素因数の和:8179

約数の個数: 48

約数和(自身を含む): 46148109696

約数和(自身を除く): 25147450278

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 3407, 4691, 6814, 9382, 10221, 14073, 20442, 28146, 30663, 42219, 61326, 84438, 248711, 342443, 497422, 684886, 746133, 1027329, 1492266, 2054658, 2238399, 3081987, 4476798, 6163974, 15982237, 31964474, 47946711, 95893422, 143840133, 287680266, 1166703301, 2333406602, 3500109903, 7000219806, 10500329709, 21000659418]

約数ペア:

[(1, 21000659418), (2, 10500329709), (3, 7000219806), (6, 3500109903), (9, 2333406602), (18, 1166703301), (73, 287680266), (146, 143840133), (219, 95893422), (438, 47946711), (657, 31964474), (1314, 15982237), (3407, 6163974), (4691, 4476798), (6814, 3081987), (9382, 2238399), (10221, 2054658), (14073, 1492266), (20442, 1027329), (28146, 746133), (30663, 684886), (42219, 497422), (61326, 342443), (84438, 248711)]