20215808

素因数分解:

$2^{11}\times {\mathrm{9871}}^1$

素因数の和:9893

約数の個数: 24

約数和(自身を含む): 40425840

約数和(自身を除く): 20210032

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 9871, 19742, 39484, 78968, 157936, 315872, 631744, 1263488, 2526976, 5053952, 10107904, 20215808]

約数ペア:

[(1, 20215808), (2, 10107904), (4, 5053952), (8, 2526976), (16, 1263488), (32, 631744), (64, 315872), (128, 157936), (256, 78968), (512, 39484), (1024, 19742), (2048, 9871)]