21386670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{712889}}^1$

素因数の和:712899

約数の個数: 16

約数和(自身を含む): 51328080

約数和(自身を除く): 29941410

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 712889, 1425778, 2138667, 3564445, 4277334, 7128890, 10693335, 21386670]

約数ペア:

[(1, 21386670), (2, 10693335), (3, 7128890), (5, 4277334), (6, 3564445), (10, 2138667), (15, 1425778), (30, 712889)]