20004903

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2467}}^1$

素因数の和:2543

約数の個数: 24

約数和(自身を含む): 31185648

約数和(自身を除く): 11180745

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2467, 2703, 7401, 8109, 22203, 41939, 125817, 130751, 377451, 392253, 1176759, 2222767, 6668301, 20004903]

約数ペア:

[(1, 20004903), (3, 6668301), (9, 2222767), (17, 1176759), (51, 392253), (53, 377451), (153, 130751), (159, 125817), (477, 41939), (901, 22203), (2467, 8109), (2703, 7401)]