20971386

素因数分解:

$2^1\times 3^5\times {\mathrm{43151}}^1$

素因数の和:43168

約数の個数: 24

約数和(自身を含む): 47121984

約数和(自身を除く): 26150598

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 43151, 86302, 129453, 258906, 388359, 776718, 1165077, 2330154, 3495231, 6990462, 10485693, 20971386]

約数ペア:

[(1, 20971386), (2, 10485693), (3, 6990462), (6, 3495231), (9, 2330154), (18, 1165077), (27, 776718), (54, 388359), (81, 258906), (162, 129453), (243, 86302), (486, 43151)]