19961804

素因数分解:

$2^2\times {\mathrm{43}}^2\times {\mathrm{2699}}^1$

素因数の和:2789

約数の個数: 18

約数和(自身を含む): 35777700

約数和(自身を除く): 15815896

約数列:

[1, 2, 4, 43, 86, 172, 1849, 2699, 3698, 5398, 7396, 10796, 116057, 232114, 464228, 4990451, 9980902, 19961804]

約数ペア:

[(1, 19961804), (2, 9980902), (4, 4990451), (43, 464228), (86, 232114), (172, 116057), (1849, 10796), (2699, 7396), (3698, 5398)]