20871170

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{31151}}^1$

素因数の和:31225

約数の個数: 16

約数和(自身を含む): 38130048

約数和(自身を除く): 17258878

約数列:

[1, 2, 5, 10, 67, 134, 335, 670, 31151, 62302, 155755, 311510, 2087117, 4174234, 10435585, 20871170]

約数ペア:

[(1, 20871170), (2, 10435585), (5, 4174234), (10, 2087117), (67, 311510), (134, 155755), (335, 62302), (670, 31151)]