28722897

素因数分解:

$3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1831}}^1$

素因数の和:1930

約数の個数: 32

約数和(自身を含む): 49244160

約数和(自身を除く): 20521263

約数列:

[1, 3, 7, 9, 21, 27, 63, 83, 189, 249, 581, 747, 1743, 1831, 2241, 5229, 5493, 12817, 15687, 16479, 38451, 49437, 115353, 151973, 346059, 455919, 1063811, 1367757, 3191433, 4103271, 9574299, 28722897]

約数ペア:

[(1, 28722897), (3, 9574299), (7, 4103271), (9, 3191433), (21, 1367757), (27, 1063811), (63, 455919), (83, 346059), (189, 151973), (249, 115353), (581, 49437), (747, 38451), (1743, 16479), (1831, 15687), (2241, 12817), (5229, 5493)]