20988562

素因数分解:

$2^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2711}}^1$

素因数の和:2806

約数の個数: 24

約数和(自身を含む): 37100160

約数和(自身を除く): 16111598

約数列:

[1, 2, 7, 14, 49, 79, 98, 158, 553, 1106, 2711, 3871, 5422, 7742, 18977, 37954, 132839, 214169, 265678, 428338, 1499183, 2998366, 10494281, 20988562]

約数ペア:

[(1, 20988562), (2, 10494281), (7, 2998366), (14, 1499183), (49, 428338), (79, 265678), (98, 214169), (158, 132839), (553, 37954), (1106, 18977), (2711, 7742), (3871, 5422)]