20519205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2677}}^1$

素因数の和:2765

約数の個数: 32

約数和(自身を含む): 38049024

約数和(自身を除く): 17529819

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 2677, 7665, 8031, 13385, 18739, 40155, 56217, 93695, 195421, 281085, 586263, 977105, 1367947, 2931315, 4103841, 6839735, 20519205]

約数ペア:

[(1, 20519205), (3, 6839735), (5, 4103841), (7, 2931315), (15, 1367947), (21, 977105), (35, 586263), (73, 281085), (105, 195421), (219, 93695), (365, 56217), (511, 40155), (1095, 18739), (1533, 13385), (2555, 8031), (2677, 7665)]