1821020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1097}}^1$

素因数の和:1189

約数の個数: 24

約数和(自身を含む): 3873744

約数和(自身を除く): 2052724

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1097, 1660, 2194, 4388, 5485, 10970, 21940, 91051, 182102, 364204, 455255, 910510, 1821020]

約数ペア:

[(1, 1821020), (2, 910510), (4, 455255), (5, 364204), (10, 182102), (20, 91051), (83, 21940), (166, 10970), (332, 5485), (415, 4388), (830, 2194), (1097, 1660)]