21675479

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1693}}^1$

素因数の和:1790

約数の個数: 16

約数和(自身を含む): 26019840

約数和(自身を除く): 4344361

約数列:

[1, 7, 31, 59, 217, 413, 1693, 1829, 11851, 12803, 52483, 99887, 367381, 699209, 3096497, 21675479]

約数ペア:

[(1, 21675479), (7, 3096497), (31, 699209), (59, 367381), (217, 99887), (413, 52483), (1693, 12803), (1829, 11851)]