20138877

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{18493}}^1$

素因数の和:18521

約数の個数: 18

約数和(自身を含む): 31976126

約数和(自身を除く): 11837249

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 18493, 55479, 166437, 203423, 610269, 1830807, 2237653, 6712959, 20138877]

約数ペア:

[(1, 20138877), (3, 6712959), (9, 2237653), (11, 1830807), (33, 610269), (99, 203423), (121, 166437), (363, 55479), (1089, 18493)]