21450447

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{2749}}^1$

素因数の和:2792

約数の個数: 24

約数和(自身を含む): 33770000

約数和(自身を除く): 12319553

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2601, 2749, 7803, 8247, 24741, 46733, 74223, 140199, 420597, 794461, 1261791, 2383383, 7150149, 21450447]

約数ペア:

[(1, 21450447), (3, 7150149), (9, 2383383), (17, 1261791), (27, 794461), (51, 420597), (153, 140199), (289, 74223), (459, 46733), (867, 24741), (2601, 8247), (2749, 7803)]