281187531

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{5519}}^1$

素因数の和:5585

約数の個数: 40

約数和(自身を含む): 456857280

約数和(自身を除く): 175669749

約数列:

[1, 3, 9, 17, 27, 37, 51, 81, 111, 153, 333, 459, 629, 999, 1377, 1887, 2997, 5519, 5661, 16557, 16983, 49671, 50949, 93823, 149013, 204203, 281469, 447039, 612609, 844407, 1837827, 2533221, 3471451, 5513481, 7599663, 10414353, 16540443, 31243059, 93729177, 281187531]

約数ペア:

[(1, 281187531), (3, 93729177), (9, 31243059), (17, 16540443), (27, 10414353), (37, 7599663), (51, 5513481), (81, 3471451), (111, 2533221), (153, 1837827), (333, 844407), (459, 612609), (629, 447039), (999, 281469), (1377, 204203), (1887, 149013), (2997, 93823), (5519, 50949), (5661, 49671), (16557, 16983)]