20977408

素因数分解:

$2^8\times {\mathrm{81943}}^1$

素因数の和:81959

約数の個数: 18

約数和(自身を含む): 41873384

約数和(自身を除く): 20895976

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 81943, 163886, 327772, 655544, 1311088, 2622176, 5244352, 10488704, 20977408]

約数ペア:

[(1, 20977408), (2, 10488704), (4, 5244352), (8, 2622176), (16, 1311088), (32, 655544), (64, 327772), (128, 163886), (256, 81943)]