20971542

素因数分解:

$2^1\times 3^1\times {\mathrm{991}}^1\times {\mathrm{3527}}^1$

素因数の和:4523

約数の個数: 16

約数和(自身を含む): 41997312

約数和(自身を除く): 21025770

約数列:

[1, 2, 3, 6, 991, 1982, 2973, 3527, 5946, 7054, 10581, 21162, 3495257, 6990514, 10485771, 20971542]

約数ペア:

[(1, 20971542), (2, 10485771), (3, 6990514), (6, 3495257), (991, 21162), (1982, 10581), (2973, 7054), (3527, 5946)]