20909568

素因数分解:

$2^9\times 3^1\times {\mathrm{13613}}^1$

素因数の和:13634

約数の個数: 40

約数和(自身を含む): 55708488

約数和(自身を除く): 34798920

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, 1536, 13613, 27226, 40839, 54452, 81678, 108904, 163356, 217808, 326712, 435616, 653424, 871232, 1306848, 1742464, 2613696, 3484928, 5227392, 6969856, 10454784, 20909568]

約数ペア:

[(1, 20909568), (2, 10454784), (3, 6969856), (4, 5227392), (6, 3484928), (8, 2613696), (12, 1742464), (16, 1306848), (24, 871232), (32, 653424), (48, 435616), (64, 326712), (96, 217808), (128, 163356), (192, 108904), (256, 81678), (384, 54452), (512, 40839), (768, 27226), (1536, 13613)]