1281888963

素因数分解:

$3^3\times {\mathrm{223}}^1\times {\mathrm{212903}}^1$

素因数の和:213135

約数の個数: 16

約数和(自身を含む): 1907619840

約数和(自身を除く): 625730877

約数列:

[1, 3, 9, 27, 223, 669, 2007, 6021, 212903, 638709, 1916127, 5748381, 47477369, 142432107, 427296321, 1281888963]

約数ペア:

[(1, 1281888963), (3, 427296321), (9, 142432107), (27, 47477369), (223, 5748381), (669, 1916127), (2007, 638709), (6021, 212903)]