20512572136

素因数分解:

$2^3\times 7^1\times {\mathrm{1571}}^1\times {\mathrm{233161}}^1$

素因数の和:234745

約数の個数: 32

約数和(自身を含む): 43983679680

約数和(自身を除く): 23471107544

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1571, 3142, 6284, 10997, 12568, 21994, 43988, 87976, 233161, 466322, 932644, 1632127, 1865288, 3264254, 6528508, 13057016, 366295931, 732591862, 1465183724, 2564071517, 2930367448, 5128143034, 10256286068, 20512572136]

約数ペア:

[(1, 20512572136), (2, 10256286068), (4, 5128143034), (7, 2930367448), (8, 2564071517), (14, 1465183724), (28, 732591862), (56, 366295931), (1571, 13057016), (3142, 6528508), (6284, 3264254), (10997, 1865288), (12568, 1632127), (21994, 932644), (43988, 466322), (87976, 233161)]