20639465

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53609}}^1$

素因数の和:53632

約数の個数: 16

約数和(自身を含む): 30879360

約数和(自身を除く): 10239895

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53609, 268045, 375263, 589699, 1876315, 2948495, 4127893, 20639465]

約数ペア:

[(1, 20639465), (5, 4127893), (7, 2948495), (11, 1876315), (35, 589699), (55, 375263), (77, 268045), (385, 53609)]