20115531

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{2083}}^1$

素因数の和:2155

約数の個数: 24

約数和(自身を含む): 30884880

約数和(自身を除く): 10769349

約数列:

[1, 3, 9, 29, 37, 87, 111, 261, 333, 1073, 2083, 3219, 6249, 9657, 18747, 60407, 77071, 181221, 231213, 543663, 693639, 2235059, 6705177, 20115531]

約数ペア:

[(1, 20115531), (3, 6705177), (9, 2235059), (29, 693639), (37, 543663), (87, 231213), (111, 181221), (261, 77071), (333, 60407), (1073, 18747), (2083, 9657), (3219, 6249)]