21091313907

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{62897}}^1$

素因数の和:63012

約数の個数: 48

約数和(自身を含む): 33557340960

約数和(自身を除く): 12466027053

約数列:

[1, 3, 9, 19, 37, 53, 57, 111, 159, 171, 333, 477, 703, 1007, 1961, 2109, 3021, 5883, 6327, 9063, 17649, 37259, 62897, 111777, 188691, 335331, 566073, 1195043, 2327189, 3333541, 3585129, 6981567, 10000623, 10755387, 20944701, 30001869, 44216591, 63337279, 123341017, 132649773, 190011837, 370023051, 397949319, 570035511, 1110069153, 2343479323, 7030437969, 21091313907]

約数ペア:

[(1, 21091313907), (3, 7030437969), (9, 2343479323), (19, 1110069153), (37, 570035511), (53, 397949319), (57, 370023051), (111, 190011837), (159, 132649773), (171, 123341017), (333, 63337279), (477, 44216591), (703, 30001869), (1007, 20944701), (1961, 10755387), (2109, 10000623), (3021, 6981567), (5883, 3585129), (6327, 3333541), (9063, 2327189), (17649, 1195043), (37259, 566073), (62897, 335331), (111777, 188691)]