21890445

素因数分解:

$3^1\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1609}}^1$

素因数の和:2524

約数の個数: 16

約数和(自身を含む): 35085120

約数和(自身を除く): 13194675

約数列:

[1, 3, 5, 15, 907, 1609, 2721, 4535, 4827, 8045, 13605, 24135, 1459363, 4378089, 7296815, 21890445]

約数ペア:

[(1, 21890445), (3, 7296815), (5, 4378089), (15, 1459363), (907, 24135), (1609, 13605), (2721, 8045), (4535, 4827)]