21288484

素因数分解:

$2^2\times 7^1\times {\mathrm{863}}^1\times {\mathrm{881}}^1$

素因数の和:1755

約数の個数: 24

約数和(自身を含む): 42674688

約数和(自身を除く): 21386204

約数列:

[1, 2, 4, 7, 14, 28, 863, 881, 1726, 1762, 3452, 3524, 6041, 6167, 12082, 12334, 24164, 24668, 760303, 1520606, 3041212, 5322121, 10644242, 21288484]

約数ペア:

[(1, 21288484), (2, 10644242), (4, 5322121), (7, 3041212), (14, 1520606), (28, 760303), (863, 24668), (881, 24164), (1726, 12334), (1762, 12082), (3452, 6167), (3524, 6041)]