21251373

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{49537}}^1$

素因数の和:49564

約数の個数: 16

約数和(自身を含む): 33289536

約数和(自身を除く): 12038163

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 49537, 148611, 544907, 643981, 1634721, 1931943, 7083791, 21251373]

約数ペア:

[(1, 21251373), (3, 7083791), (11, 1931943), (13, 1634721), (33, 643981), (39, 544907), (143, 148611), (429, 49537)]