20809222

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{5179}}^1$

素因数の和:5236

約数の個数: 24

約数和(自身を含む): 37202760

約数和(自身を除く): 16393538

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 5179, 10358, 36253, 72506, 212339, 253771, 424678, 507542, 1486373, 2972746, 10404611, 20809222]

約数ペア:

[(1, 20809222), (2, 10404611), (7, 2972746), (14, 1486373), (41, 507542), (49, 424678), (82, 253771), (98, 212339), (287, 72506), (574, 36253), (2009, 10358), (4018, 5179)]