21231393

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{3343}}^1$

素因数の和:3448

約数の個数: 16

約数和(自身を含む): 29694720

約数和(自身を除く): 8463327

約数列:

[1, 3, 29, 73, 87, 219, 2117, 3343, 6351, 10029, 96947, 244039, 290841, 732117, 7077131, 21231393]

約数ペア:

[(1, 21231393), (3, 7077131), (29, 732117), (73, 290841), (87, 244039), (219, 96947), (2117, 10029), (3343, 6351)]