20472183

素因数分解:

$3^4\times {\mathrm{31}}^2\times {\mathrm{263}}^1$

素因数の和:337

約数の個数: 30

約数和(自身を含む): 31720392

約数和(自身を除く): 11248209

約数列:

[1, 3, 9, 27, 31, 81, 93, 263, 279, 789, 837, 961, 2367, 2511, 2883, 7101, 8153, 8649, 21303, 24459, 25947, 73377, 77841, 220131, 252743, 660393, 758229, 2274687, 6824061, 20472183]

約数ペア:

[(1, 20472183), (3, 6824061), (9, 2274687), (27, 758229), (31, 660393), (81, 252743), (93, 220131), (263, 77841), (279, 73377), (789, 25947), (837, 24459), (961, 21303), (2367, 8649), (2511, 8153), (2883, 7101)]