20886261

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11047179

約数列:

[1, 3, 11, 33, 41, 43, 123, 129, 359, 451, 473, 1077, 1353, 1419, 1763, 3949, 5289, 11847, 14719, 15437, 19393, 44157, 46311, 58179, 161909, 169807, 485727, 509421, 632917, 1898751, 6962087, 20886261]

約数ペア:

[(1, 20886261), (3, 6962087), (11, 1898751), (33, 632917), (41, 509421), (43, 485727), (123, 169807), (129, 161909), (359, 58179), (451, 46311), (473, 44157), (1077, 19393), (1353, 15437), (1419, 14719), (1763, 11847), (3949, 5289)]