20641341

素因数分解:

$3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{2239}}^1$

素因数の和:2688

約数の個数: 16

約数和(自身を含む): 31539200

約数和(自身を除く): 10897859

約数列:

[1, 3, 7, 21, 439, 1317, 2239, 3073, 6717, 9219, 15673, 47019, 982921, 2948763, 6880447, 20641341]

約数ペア:

[(1, 20641341), (3, 6880447), (7, 2948763), (21, 982921), (439, 47019), (1317, 15673), (2239, 9219), (3073, 6717)]