15728013

素因数分解:

$3^4\times 7^1\times {\mathrm{27739}}^1$

素因数の和:27758

約数の個数: 20

約数和(自身を含む): 26852320

約数和(自身を除く): 11124307

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 27739, 83217, 194173, 249651, 582519, 748953, 1747557, 2246859, 5242671, 15728013]

約数ペア:

[(1, 15728013), (3, 5242671), (7, 2246859), (9, 1747557), (21, 748953), (27, 582519), (63, 249651), (81, 194173), (189, 83217), (567, 27739)]