19903288

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 38482560

約数和(自身を除く): 18579272

約数列:

[1, 2, 4, 8, 67, 71, 134, 142, 268, 284, 523, 536, 568, 1046, 2092, 4184, 4757, 9514, 19028, 35041, 37133, 38056, 70082, 74266, 140164, 148532, 280328, 297064, 2487911, 4975822, 9951644, 19903288]

約数ペア:

[(1, 19903288), (2, 9951644), (4, 4975822), (8, 2487911), (67, 297064), (71, 280328), (134, 148532), (142, 140164), (268, 74266), (284, 70082), (523, 38056), (536, 37133), (568, 35041), (1046, 19028), (2092, 9514), (4184, 4757)]