21012824

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3643}}^1$

素因数の和:3759

約数の個数: 32

約数和(自身を含む): 45477120

約数和(自身を除く): 24464296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 3643, 5768, 7286, 14572, 25501, 29144, 51002, 102004, 204008, 375229, 750458, 1500916, 2626603, 3001832, 5253206, 10506412, 21012824]

約数ペア:

[(1, 21012824), (2, 10506412), (4, 5253206), (7, 3001832), (8, 2626603), (14, 1500916), (28, 750458), (56, 375229), (103, 204008), (206, 102004), (412, 51002), (721, 29144), (824, 25501), (1442, 14572), (2884, 7286), (3643, 5768)]