20957301

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{739}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 31861440

約数和(自身を除く): 10904139

約数列:

[1, 3, 9, 23, 69, 137, 207, 411, 739, 1233, 2217, 3151, 6651, 9453, 16997, 28359, 50991, 101243, 152973, 303729, 911187, 2328589, 6985767, 20957301]

約数ペア:

[(1, 20957301), (3, 6985767), (9, 2328589), (23, 911187), (69, 303729), (137, 152973), (207, 101243), (411, 50991), (739, 28359), (1233, 16997), (2217, 9453), (3151, 6651)]