19957328

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{26539}}^1$

素因数の和:26594

約数の個数: 20

約数和(自身を含む): 39491520

約数和(自身を除く): 19534192

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 26539, 53078, 106156, 212312, 424624, 1247333, 2494666, 4989332, 9978664, 19957328]

約数ペア:

[(1, 19957328), (2, 9978664), (4, 4989332), (8, 2494666), (16, 1247333), (47, 424624), (94, 212312), (188, 106156), (376, 53078), (752, 26539)]