20212461981

素因数分解:

$3^3\times {\mathrm{709}}^1\times {\mathrm{1055867}}^1$

素因数の和:1056585

約数の個数: 16

約数和(自身を含む): 29986651200

約数和(自身を除く): 9774189219

約数列:

[1, 3, 9, 27, 709, 2127, 6381, 19143, 1055867, 3167601, 9502803, 28508409, 748609703, 2245829109, 6737487327, 20212461981]

約数ペア:

[(1, 20212461981), (3, 6737487327), (9, 2245829109), (27, 748609703), (709, 28508409), (2127, 9502803), (6381, 3167601), (19143, 1055867)]