280661517

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{203821}}^1$

素因数の和:203850

約数の個数: 20

約数和(自身を含む): 443924316

約数和(自身を除く): 163262799

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 203821, 611463, 1834389, 3464957, 5503167, 10394871, 16509501, 31184613, 93553839, 280661517]

約数ペア:

[(1, 280661517), (3, 93553839), (9, 31184613), (17, 16509501), (27, 10394871), (51, 5503167), (81, 3464957), (153, 1834389), (459, 611463), (1377, 203821)]