20415488

素因数分解:

$2^{10}\times {\mathrm{19937}}^1$

素因数の和:19957

約数の個数: 22

約数和(自身を含む): 40813086

約数和(自身を除く): 20397598

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 19937, 39874, 79748, 159496, 318992, 637984, 1275968, 2551936, 5103872, 10207744, 20415488]

約数ペア:

[(1, 20415488), (2, 10207744), (4, 5103872), (8, 2551936), (16, 1275968), (32, 637984), (64, 318992), (128, 159496), (256, 79748), (512, 39874), (1024, 19937)]