209216133

素因数分解:

$3^2\times 7^2\times {\mathrm{474413}}^1$

素因数の和:474433

約数の個数: 18

約数和(自身を含む): 351540774

約数和(自身を除く): 142324641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 474413, 1423239, 3320891, 4269717, 9962673, 23246237, 29888019, 69738711, 209216133]

約数ペア:

[(1, 209216133), (3, 69738711), (7, 29888019), (9, 23246237), (21, 9962673), (49, 4269717), (63, 3320891), (147, 1423239), (441, 474413)]