21276477

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{179}}^1\times {\mathrm{281}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 31674240

約数和(自身を除く): 10397763

約数列:

[1, 3, 9, 47, 141, 179, 281, 423, 537, 843, 1611, 2529, 8413, 13207, 25239, 39621, 50299, 75717, 118863, 150897, 452691, 2364053, 7092159, 21276477]

約数ペア:

[(1, 21276477), (3, 7092159), (9, 2364053), (47, 452691), (141, 150897), (179, 118863), (281, 75717), (423, 50299), (537, 39621), (843, 25239), (1611, 13207), (2529, 8413)]