2781136

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{1721}}^1$

素因数の和:1830

約数の個数: 20

約数和(自身を含む): 5444964

約数和(自身を除く): 2663828

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 1721, 3442, 6884, 13768, 27536, 173821, 347642, 695284, 1390568, 2781136]

約数ペア:

[(1, 2781136), (2, 1390568), (4, 695284), (8, 347642), (16, 173821), (101, 27536), (202, 13768), (404, 6884), (808, 3442), (1616, 1721)]