21297782

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{701}}^1\times {\mathrm{1381}}^1$

素因数の和:2095

約数の個数: 16

約数和(自身を含む): 34925904

約数和(自身を除く): 13628122

約数列:

[1, 2, 11, 22, 701, 1381, 1402, 2762, 7711, 15191, 15422, 30382, 968081, 1936162, 10648891, 21297782]

約数ペア:

[(1, 21297782), (2, 10648891), (11, 1936162), (22, 968081), (701, 30382), (1381, 15422), (1402, 15191), (2762, 7711)]