19999737

素因数分解:

$3^3\times {\mathrm{73}}^2\times {\mathrm{139}}^1$

素因数の和:294

約数の個数: 24

約数和(自身を含む): 30256800

約数和(自身を除く): 10257063

約数列:

[1, 3, 9, 27, 73, 139, 219, 417, 657, 1251, 1971, 3753, 5329, 10147, 15987, 30441, 47961, 91323, 143883, 273969, 740731, 2222193, 6666579, 19999737]

約数ペア:

[(1, 19999737), (3, 6666579), (9, 2222193), (27, 740731), (73, 273969), (139, 143883), (219, 91323), (417, 47961), (657, 30441), (1251, 15987), (1971, 10147), (3753, 5329)]