207971721

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{2143}}^1$

素因数の和:2453

約数の個数: 24

約数和(自身を含む): 309044736

約数和(自身を除く): 101073015

約数列:

[1, 3, 9, 41, 123, 263, 369, 789, 2143, 2367, 6429, 10783, 19287, 32349, 87863, 97047, 263589, 563609, 790767, 1690827, 5072481, 23107969, 69323907, 207971721]

約数ペア:

[(1, 207971721), (3, 69323907), (9, 23107969), (41, 5072481), (123, 1690827), (263, 790767), (369, 563609), (789, 263589), (2143, 97047), (2367, 87863), (6429, 32349), (10783, 19287)]