20116863

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1549}}^1$

素因数の和:1608

約数の個数: 32

約数和(自身を含む): 32984000

約数和(自身を除く): 12867137

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 999, 1443, 1549, 4329, 4647, 12987, 13941, 20137, 41823, 57313, 60411, 171939, 181233, 515817, 543699, 745069, 1547451, 2235207, 6705621, 20116863]

約数ペア:

[(1, 20116863), (3, 6705621), (9, 2235207), (13, 1547451), (27, 745069), (37, 543699), (39, 515817), (111, 181233), (117, 171939), (333, 60411), (351, 57313), (481, 41823), (999, 20137), (1443, 13941), (1549, 12987), (4329, 4647)]