21402892

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40231}}^1$

素因数の和:40261

約数の個数: 24

約数和(自身を含む): 45059840

約数和(自身を除く): 23656948

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40231, 80462, 160924, 281617, 563234, 764389, 1126468, 1528778, 3057556, 5350723, 10701446, 21402892]

約数ペア:

[(1, 21402892), (2, 10701446), (4, 5350723), (7, 3057556), (14, 1528778), (19, 1126468), (28, 764389), (38, 563234), (76, 281617), (133, 160924), (266, 80462), (532, 40231)]