20297585

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52721}}^1$

素因数の和:52744

約数の個数: 16

約数和(自身を含む): 30367872

約数和(自身を除く): 10070287

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 52721, 263605, 369047, 579931, 1845235, 2899655, 4059517, 20297585]

約数ペア:

[(1, 20297585), (5, 4059517), (7, 2899655), (11, 1845235), (35, 579931), (55, 369047), (77, 263605), (385, 52721)]