8181981

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1009}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 12762360

約数和(自身を除く): 4580379

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 1009, 2703, 3027, 8109, 9081, 17153, 51459, 53477, 154377, 160431, 481293, 909109, 2727327, 8181981]

約数ペア:

[(1, 8181981), (3, 2727327), (9, 909109), (17, 481293), (51, 160431), (53, 154377), (153, 53477), (159, 51459), (477, 17153), (901, 9081), (1009, 8109), (2703, 3027)]