18819081

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{13151}}^1$

素因数の和:13213

約数の個数: 16

約数和(自身を含む): 28408320

約数和(自身を除く): 9589239

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 13151, 39453, 118359, 355077, 697003, 2091009, 6273027, 18819081]

約数ペア:

[(1, 18819081), (3, 6273027), (9, 2091009), (27, 697003), (53, 355077), (159, 118359), (477, 39453), (1431, 13151)]