28759817421

素因数分解:

$3^3\times {\mathrm{71}}^2\times {\mathrm{131}}^1\times {\mathrm{1613}}^1$

素因数の和:1895

約数の個数: 48

約数和(自身を含む): 43572576960

約数和(自身を除く): 14812759539

約数列:

[1, 3, 9, 27, 71, 131, 213, 393, 639, 1179, 1613, 1917, 3537, 4839, 5041, 9301, 14517, 15123, 27903, 43551, 45369, 83709, 114523, 136107, 211303, 251127, 343569, 633909, 660371, 1030707, 1901727, 1981113, 3092121, 5705181, 5943339, 8131133, 15002513, 17830017, 24393399, 45007539, 73180197, 135022617, 219540591, 405067851, 1065178423, 3195535269, 9586605807, 28759817421]

約数ペア:

[(1, 28759817421), (3, 9586605807), (9, 3195535269), (27, 1065178423), (71, 405067851), (131, 219540591), (213, 135022617), (393, 73180197), (639, 45007539), (1179, 24393399), (1613, 17830017), (1917, 15002513), (3537, 8131133), (4839, 5943339), (5041, 5705181), (9301, 3092121), (14517, 1981113), (15123, 1901727), (27903, 1030707), (43551, 660371), (45369, 633909), (83709, 343569), (114523, 251127), (136107, 211303)]