21287676

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1279}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 53043200

約数和(自身を除く): 31755524

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 73, 76, 114, 146, 219, 228, 292, 438, 876, 1279, 1387, 2558, 2774, 3837, 4161, 5116, 5548, 7674, 8322, 15348, 16644, 24301, 48602, 72903, 93367, 97204, 145806, 186734, 280101, 291612, 373468, 560202, 1120404, 1773973, 3547946, 5321919, 7095892, 10643838, 21287676]

約数ペア:

[(1, 21287676), (2, 10643838), (3, 7095892), (4, 5321919), (6, 3547946), (12, 1773973), (19, 1120404), (38, 560202), (57, 373468), (73, 291612), (76, 280101), (114, 186734), (146, 145806), (219, 97204), (228, 93367), (292, 72903), (438, 48602), (876, 24301), (1279, 16644), (1387, 15348), (2558, 8322), (2774, 7674), (3837, 5548), (4161, 5116)]