21185864

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3673}}^1$

素因数の和:3789

約数の個数: 32

約数和(自身を含む): 45851520

約数和(自身を除く): 24665656

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 3673, 5768, 7346, 14692, 25711, 29384, 51422, 102844, 205688, 378319, 756638, 1513276, 2648233, 3026552, 5296466, 10592932, 21185864]

約数ペア:

[(1, 21185864), (2, 10592932), (4, 5296466), (7, 3026552), (8, 2648233), (14, 1513276), (28, 756638), (56, 378319), (103, 205688), (206, 102844), (412, 51422), (721, 29384), (824, 25711), (1442, 14692), (2884, 7346), (3673, 5768)]