21379246

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{28813}}^1$

素因数の和:28875

約数の個数: 16

約数和(自身を含む): 37342944

約数和(自身を除く): 15963698

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 28813, 57626, 201691, 403382, 1527089, 3054178, 10689623, 21379246]

約数ペア:

[(1, 21379246), (2, 10689623), (7, 3054178), (14, 1527089), (53, 403382), (106, 201691), (371, 57626), (742, 28813)]