21131988

素因数分解:

$2^2\times 3^1\times {\mathrm{1217}}^1\times {\mathrm{1447}}^1$

素因数の和:2671

約数の個数: 24

約数和(自身を含む): 49382592

約数和(自身を除く): 28250604

約数列:

[1, 2, 3, 4, 6, 12, 1217, 1447, 2434, 2894, 3651, 4341, 4868, 5788, 7302, 8682, 14604, 17364, 1760999, 3521998, 5282997, 7043996, 10565994, 21131988]

約数ペア:

[(1, 21131988), (2, 10565994), (3, 7043996), (4, 5282997), (6, 3521998), (12, 1760999), (1217, 17364), (1447, 14604), (2434, 8682), (2894, 7302), (3651, 5788), (4341, 4868)]