2178891183

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{1669}}^1$

素因数の和:1876

約数の個数: 48

約数和(自身を含む): 3454254720

約数和(自身を除く): 1275363537

約数列:

[1, 3, 7, 21, 49, 83, 107, 147, 249, 321, 581, 749, 1669, 1743, 2247, 4067, 5007, 5243, 8881, 11683, 12201, 15729, 26643, 35049, 62167, 81781, 138527, 178583, 186501, 245343, 415581, 435169, 535749, 969689, 1250081, 1305507, 2909067, 3750243, 6787823, 8750567, 14822389, 20363469, 26251701, 44467167, 103756723, 311270169, 726297061, 2178891183]

約数ペア:

[(1, 2178891183), (3, 726297061), (7, 311270169), (21, 103756723), (49, 44467167), (83, 26251701), (107, 20363469), (147, 14822389), (249, 8750567), (321, 6787823), (581, 3750243), (749, 2909067), (1669, 1305507), (1743, 1250081), (2247, 969689), (4067, 535749), (5007, 435169), (5243, 415581), (8881, 245343), (11683, 186501), (12201, 178583), (15729, 138527), (26643, 81781), (35049, 62167)]