20128713

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{71}}^2$

素因数の和:178

約数の個数: 24

約数和(自身を含む): 29941728

約数和(自身を除く): 9813015

約数列:

[1, 3, 11, 33, 71, 121, 213, 363, 781, 1331, 2343, 3993, 5041, 8591, 15123, 25773, 55451, 94501, 166353, 283503, 609961, 1829883, 6709571, 20128713]

約数ペア:

[(1, 20128713), (3, 6709571), (11, 1829883), (33, 609961), (71, 283503), (121, 166353), (213, 94501), (363, 55451), (781, 25773), (1331, 15123), (2343, 8591), (3993, 5041)]