20881546

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{5197}}^1$

素因数の和:5254

約数の個数: 24

約数和(自身を含む): 37332036

約数和(自身を除く): 16450490

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 5197, 10394, 36379, 72758, 213077, 254653, 426154, 509306, 1491539, 2983078, 10440773, 20881546]

約数ペア:

[(1, 20881546), (2, 10440773), (7, 2983078), (14, 1491539), (41, 509306), (49, 426154), (82, 254653), (98, 213077), (287, 72758), (574, 36379), (2009, 10394), (4018, 5197)]