20986384

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{15803}}^1$

素因数の和:15894

約数の個数: 20

約数和(自身を含む): 41153616

約数和(自身を除く): 20167232

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 15803, 31606, 63212, 126424, 252848, 1311649, 2623298, 5246596, 10493192, 20986384]

約数ペア:

[(1, 20986384), (2, 10493192), (4, 5246596), (8, 2623298), (16, 1311649), (83, 252848), (166, 126424), (332, 63212), (664, 31606), (1328, 15803)]