20642085

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4729}}^1$

素因数の和:4837

約数の個数: 24

約数和(自身を含む): 36156120

約数和(自身を除く): 15514035

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 485, 873, 1455, 4365, 4729, 14187, 23645, 42561, 70935, 212805, 458713, 1376139, 2293565, 4128417, 6880695, 20642085]

約数ペア:

[(1, 20642085), (3, 6880695), (5, 4128417), (9, 2293565), (15, 1376139), (45, 458713), (97, 212805), (291, 70935), (485, 42561), (873, 23645), (1455, 14187), (4365, 4729)]