20961537

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{883}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 28811328

約数和(自身を除く): 7849791

約数列:

[1, 3, 41, 123, 193, 579, 883, 2649, 7913, 23739, 36203, 108609, 170419, 511257, 6987179, 20961537]

約数ペア:

[(1, 20961537), (3, 6987179), (41, 511257), (123, 170419), (193, 108609), (579, 36203), (883, 23739), (2649, 7913)]