18618741

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4337}}^1$

素因数の和:4402

約数の個数: 20

約数和(自身を含む): 28344492

約数和(自身を除く): 9725751

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 4337, 13011, 39033, 117099, 229861, 351297, 689583, 2068749, 6206247, 18618741]

約数ペア:

[(1, 18618741), (3, 6206247), (9, 2068749), (27, 689583), (53, 351297), (81, 229861), (159, 117099), (477, 39033), (1431, 13011), (4293, 4337)]