21078398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{3643}}^1$

素因数の和:3919

約数の個数: 16

約数和(自身を含む): 34632576

約数和(自身を除く): 13554178

約数列:

[1, 2, 11, 22, 263, 526, 2893, 3643, 5786, 7286, 40073, 80146, 958109, 1916218, 10539199, 21078398]

約数ペア:

[(1, 21078398), (2, 10539199), (11, 1916218), (22, 958109), (263, 80146), (526, 40073), (2893, 7286), (3643, 5786)]