21651212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{1871}}^1$

素因数の和:2149

約数の個数: 24

約数和(自身を含む): 41513472

約数和(自身を除く): 19862260

約数列:

[1, 2, 4, 11, 22, 44, 263, 526, 1052, 1871, 2893, 3742, 5786, 7484, 11572, 20581, 41162, 82324, 492073, 984146, 1968292, 5412803, 10825606, 21651212]

約数ペア:

[(1, 21651212), (2, 10825606), (4, 5412803), (11, 1968292), (22, 984146), (44, 492073), (263, 82324), (526, 41162), (1052, 20581), (1871, 11572), (2893, 7484), (3742, 5786)]