21263836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{8191}}^1$

素因数の和:8265

約数の個数: 24

約数和(自身を含む): 41287680

約数和(自身を除く): 20023844

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 236, 649, 1298, 2596, 8191, 16382, 32764, 90101, 180202, 360404, 483269, 966538, 1933076, 5315959, 10631918, 21263836]

約数ペア:

[(1, 21263836), (2, 10631918), (4, 5315959), (11, 1933076), (22, 966538), (44, 483269), (59, 360404), (118, 180202), (236, 90101), (649, 32764), (1298, 16382), (2596, 8191)]