18886413

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{9883}}^1$

素因数の和:9913

約数の個数: 24

約数和(自身を含む): 31549728

約数和(自身を除く): 12663315

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 9883, 29649, 69181, 128479, 207543, 385437, 484267, 899353, 1452801, 2698059, 6295471, 18886413]

約数ペア:

[(1, 18886413), (3, 6295471), (7, 2698059), (13, 1452801), (21, 899353), (39, 484267), (49, 385437), (91, 207543), (147, 128479), (273, 69181), (637, 29649), (1911, 9883)]