21418089

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{8429}}^1$

素因数の和:8461

約数の個数: 24

約数和(自身を含む): 35878080

約数和(自身を除く): 14459991

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 8429, 25287, 59003, 92719, 177009, 278157, 649033, 1019909, 1947099, 3059727, 7139363, 21418089]

約数ペア:

[(1, 21418089), (3, 7139363), (7, 3059727), (11, 1947099), (21, 1019909), (33, 649033), (77, 278157), (121, 177009), (231, 92719), (363, 59003), (847, 25287), (2541, 8429)]