18802553

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 24003840

約数和(自身を除く): 5201287

約数列:

[1, 7, 11, 77, 79, 121, 281, 553, 847, 869, 1967, 3091, 6083, 9559, 21637, 22199, 34001, 66913, 155393, 238007, 244189, 1709323, 2686079, 18802553]

約数ペア:

[(1, 18802553), (7, 2686079), (11, 1709323), (77, 244189), (79, 238007), (121, 155393), (281, 66913), (553, 34001), (847, 22199), (869, 21637), (1967, 9559), (3091, 6083)]