20814759

素因数分解:

$3^3\times 7^2\times {\mathrm{15733}}^1$

素因数の和:15756

約数の個数: 24

約数和(自身を含む): 35873520

約数和(自身を除く): 15058761

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15733, 47199, 110131, 141597, 330393, 424791, 770917, 991179, 2312751, 2973537, 6938253, 20814759]

約数ペア:

[(1, 20814759), (3, 6938253), (7, 2973537), (9, 2312751), (21, 991179), (27, 770917), (49, 424791), (63, 330393), (147, 141597), (189, 110131), (441, 47199), (1323, 15733)]