21790065

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3221}}^1$

素因数の和:3281

約数の個数: 32

約数和(自身を含む): 38973312

約数和(自身を除く): 17183247

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 123, 165, 205, 451, 615, 1353, 2255, 3221, 6765, 9663, 16105, 35431, 48315, 106293, 132061, 177155, 396183, 531465, 660305, 1452671, 1980915, 4358013, 7263355, 21790065]

約数ペア:

[(1, 21790065), (3, 7263355), (5, 4358013), (11, 1980915), (15, 1452671), (33, 660305), (41, 531465), (55, 396183), (123, 177155), (165, 132061), (205, 106293), (451, 48315), (615, 35431), (1353, 16105), (2255, 9663), (3221, 6765)]