21480678

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{587}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 28052442

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 107, 114, 171, 214, 321, 342, 587, 642, 963, 1174, 1761, 1926, 2033, 3522, 4066, 5283, 6099, 10566, 11153, 12198, 18297, 22306, 33459, 36594, 62809, 66918, 100377, 125618, 188427, 200754, 376854, 565281, 1130562, 1193371, 2386742, 3580113, 7160226, 10740339, 21480678]

約数ペア:

[(1, 21480678), (2, 10740339), (3, 7160226), (6, 3580113), (9, 2386742), (18, 1193371), (19, 1130562), (38, 565281), (57, 376854), (107, 200754), (114, 188427), (171, 125618), (214, 100377), (321, 66918), (342, 62809), (587, 36594), (642, 33459), (963, 22306), (1174, 18297), (1761, 12198), (1926, 11153), (2033, 10566), (3522, 6099), (4066, 5283)]