27807291

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{10691}}^1$

素因数の和:10731

約数の個数: 18

約数和(自身を含む): 42671772

約数和(自身を除く): 14864481

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 10691, 32073, 96219, 181747, 545241, 1635723, 3089699, 9269097, 27807291]

約数ペア:

[(1, 27807291), (3, 9269097), (9, 3089699), (17, 1635723), (51, 545241), (153, 181747), (289, 96219), (867, 32073), (2601, 10691)]