20216964418

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{673}}^1$

素因数の和:1091

約数の個数: 64

約数和(自身を含む): 35576847360

約数和(自身を除く): 15359882942

約数列:

[1, 2, 7, 14, 79, 157, 158, 173, 314, 346, 553, 673, 1099, 1106, 1211, 1346, 2198, 2422, 4711, 9422, 12403, 13667, 24806, 27161, 27334, 53167, 54322, 86821, 95669, 105661, 106334, 116429, 173642, 190127, 191338, 211322, 232858, 372169, 380254, 739627, 744338, 815003, 1479254, 1630006, 2145719, 4291438, 8347219, 9197891, 15020033, 16694438, 18279353, 18395782, 30040066, 36558706, 58430533, 64385237, 116861066, 127955471, 128770474, 255910942, 1444068887, 2888137774, 10108482209, 20216964418]

約数ペア:

[(1, 20216964418), (2, 10108482209), (7, 2888137774), (14, 1444068887), (79, 255910942), (157, 128770474), (158, 127955471), (173, 116861066), (314, 64385237), (346, 58430533), (553, 36558706), (673, 30040066), (1099, 18395782), (1106, 18279353), (1211, 16694438), (1346, 15020033), (2198, 9197891), (2422, 8347219), (4711, 4291438), (9422, 2145719), (12403, 1630006), (13667, 1479254), (24806, 815003), (27161, 744338), (27334, 739627), (53167, 380254), (54322, 372169), (86821, 232858), (95669, 211322), (105661, 191338), (106334, 190127), (116429, 173642)]