21180236

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68767}}^1$

素因数の和:68789

約数の個数: 24

約数和(自身を含む): 46212096

約数和(自身を除く): 25031860

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68767, 137534, 275068, 481369, 756437, 962738, 1512874, 1925476, 3025748, 5295059, 10590118, 21180236]

約数ペア:

[(1, 21180236), (2, 10590118), (4, 5295059), (7, 3025748), (11, 1925476), (14, 1512874), (22, 962738), (28, 756437), (44, 481369), (77, 275068), (154, 137534), (308, 68767)]