20908341

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:850

約数の個数: 32

約数和(自身を含む): 33264000

約数和(自身を除く): 12355659

約数列:

[1, 3, 9, 19, 27, 53, 57, 159, 171, 477, 513, 769, 1007, 1431, 2307, 3021, 6921, 9063, 14611, 20763, 27189, 40757, 43833, 122271, 131499, 366813, 394497, 774383, 1100439, 2323149, 6969447, 20908341]

約数ペア:

[(1, 20908341), (3, 6969447), (9, 2323149), (19, 1100439), (27, 774383), (53, 394497), (57, 366813), (159, 131499), (171, 122271), (477, 43833), (513, 40757), (769, 27189), (1007, 20763), (1431, 14611), (2307, 9063), (3021, 6921)]