21143595

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 37232640

約数和(自身を除く): 16089045

約数列:

[1, 3, 5, 11, 15, 33, 55, 127, 165, 381, 635, 1009, 1397, 1905, 3027, 4191, 5045, 6985, 11099, 15135, 20955, 33297, 55495, 128143, 166485, 384429, 640715, 1409573, 1922145, 4228719, 7047865, 21143595]

約数ペア:

[(1, 21143595), (3, 7047865), (5, 4228719), (11, 1922145), (15, 1409573), (33, 640715), (55, 384429), (127, 166485), (165, 128143), (381, 55495), (635, 33297), (1009, 20955), (1397, 15135), (1905, 11099), (3027, 6985), (4191, 5045)]