20288751

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{50849}}^1$

素因数の和:50878

約数の個数: 16

約数和(自身を含む): 32544000

約数和(自身を除く): 12255249

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 50849, 152547, 355943, 966131, 1067829, 2898393, 6762917, 20288751]

約数ペア:

[(1, 20288751), (3, 6762917), (7, 2898393), (19, 1067829), (21, 966131), (57, 355943), (133, 152547), (399, 50849)]