21144795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{727}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 38857728

約数和(自身を除く): 17712933

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 277, 727, 831, 1385, 1939, 2181, 3635, 4155, 5089, 5817, 9695, 10905, 15267, 25445, 29085, 76335, 201379, 604137, 1006895, 1409653, 3020685, 4228959, 7048265, 21144795]

約数ペア:

[(1, 21144795), (3, 7048265), (5, 4228959), (7, 3020685), (15, 1409653), (21, 1006895), (35, 604137), (105, 201379), (277, 76335), (727, 29085), (831, 25445), (1385, 15267), (1939, 10905), (2181, 9695), (3635, 5817), (4155, 5089)]