21505442

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90359}}^1$

素因数の和:90385

約数の個数: 16

約数和(自身を含む): 39035520

約数和(自身を除く): 17530078

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90359, 180718, 632513, 1265026, 1536103, 3072206, 10752721, 21505442]

約数ペア:

[(1, 21505442), (2, 10752721), (7, 3072206), (14, 1536103), (17, 1265026), (34, 632513), (119, 180718), (238, 90359)]