20719545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17939}}^1$

素因数の和:17965

約数の個数: 32

約数和(自身を含む): 41333760

約数和(自身を除く): 20614215

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17939, 53817, 89695, 125573, 197329, 269085, 376719, 591987, 627865, 986645, 1381303, 1883595, 2959935, 4143909, 6906515, 20719545]

約数ペア:

[(1, 20719545), (3, 6906515), (5, 4143909), (7, 2959935), (11, 1883595), (15, 1381303), (21, 986645), (33, 627865), (35, 591987), (55, 376719), (77, 269085), (105, 197329), (165, 125573), (231, 89695), (385, 53817), (1155, 17939)]