20168872

素因数分解:

$2^3\times {\mathrm{389}}^1\times {\mathrm{6481}}^1$

素因数の和:6876

約数の個数: 16

約数和(自身を含む): 37919700

約数和(自身を除く): 17750828

約数列:

[1, 2, 4, 8, 389, 778, 1556, 3112, 6481, 12962, 25924, 51848, 2521109, 5042218, 10084436, 20168872]

約数ペア:

[(1, 20168872), (2, 10084436), (4, 5042218), (8, 2521109), (389, 51848), (778, 25924), (1556, 12962), (3112, 6481)]