21590868

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138403}}^1$

素因数の和:138423

約数の個数: 24

約数和(自身を含む): 54254368

約数和(自身を除く): 32663500

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138403, 276806, 415209, 553612, 830418, 1660836, 1799239, 3598478, 5397717, 7196956, 10795434, 21590868]

約数ペア:

[(1, 21590868), (2, 10795434), (3, 7196956), (4, 5397717), (6, 3598478), (12, 1799239), (13, 1660836), (26, 830418), (39, 553612), (52, 415209), (78, 276806), (156, 138403)]