21017572

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2851}}^1$

素因数の和:2971

約数の個数: 24

約数和(自身を含む): 39129440

約数和(自身を除く): 18111868

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1843, 2851, 3686, 5702, 7372, 11404, 54169, 108338, 216676, 276547, 553094, 1106188, 5254393, 10508786, 21017572]

約数ペア:

[(1, 21017572), (2, 10508786), (4, 5254393), (19, 1106188), (38, 553094), (76, 276547), (97, 216676), (194, 108338), (388, 54169), (1843, 11404), (2851, 7372), (3686, 5702)]