21800185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3121}}^1$

素因数の和:3264

約数の個数: 16

約数和(自身を含む): 28772352

約数和(自身を除く): 6972167

約数列:

[1, 5, 11, 55, 127, 635, 1397, 3121, 6985, 15605, 34331, 171655, 396367, 1981835, 4360037, 21800185]

約数ペア:

[(1, 21800185), (5, 4360037), (11, 1981835), (55, 396367), (127, 171655), (635, 34331), (1397, 15605), (3121, 6985)]