21890670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{729689}}^1$

素因数の和:729699

約数の個数: 16

約数和(自身を含む): 52537680

約数和(自身を除く): 30647010

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 729689, 1459378, 2189067, 3648445, 4378134, 7296890, 10945335, 21890670]

約数ペア:

[(1, 21890670), (2, 10945335), (3, 7296890), (5, 4378134), (6, 3648445), (10, 2189067), (15, 1459378), (30, 729689)]