19988992

素因数分解:

$2^9\times {\mathrm{39041}}^1$

素因数の和:39059

約数の個数: 20

約数和(自身を含む): 39939966

約数和(自身を除く): 19950974

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 39041, 78082, 156164, 312328, 624656, 1249312, 2498624, 4997248, 9994496, 19988992]

約数ペア:

[(1, 19988992), (2, 9994496), (4, 4997248), (8, 2498624), (16, 1249312), (32, 624656), (64, 312328), (128, 156164), (256, 78082), (512, 39041)]