21606870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{720229}}^1$

素因数の和:720239

約数の個数: 16

約数和(自身を含む): 51856560

約数和(自身を除く): 30249690

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 720229, 1440458, 2160687, 3601145, 4321374, 7202290, 10803435, 21606870]

約数ペア:

[(1, 21606870), (2, 10803435), (3, 7202290), (5, 4321374), (6, 3601145), (10, 2160687), (15, 1440458), (30, 720229)]