20825685

素因数分解:

$3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2423}}^1$

素因数の和:2625

約数の個数: 24

約数和(自身を含む): 36301824

約数和(自身を除く): 15476139

約数列:

[1, 3, 5, 9, 15, 45, 191, 573, 955, 1719, 2423, 2865, 7269, 8595, 12115, 21807, 36345, 109035, 462793, 1388379, 2313965, 4165137, 6941895, 20825685]

約数ペア:

[(1, 20825685), (3, 6941895), (5, 4165137), (9, 2313965), (15, 1388379), (45, 462793), (191, 109035), (573, 36345), (955, 21807), (1719, 12115), (2423, 8595), (2865, 7269)]