20539645

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{8039}}^1$

素因数の和:8124

約数の個数: 16

約数和(自身を含む): 28558080

約数和(自身を除く): 8018435

約数列:

[1, 5, 7, 35, 73, 365, 511, 2555, 8039, 40195, 56273, 281365, 586847, 2934235, 4107929, 20539645]

約数ペア:

[(1, 20539645), (5, 4107929), (7, 2934235), (35, 586847), (73, 281365), (365, 56273), (511, 40195), (2555, 8039)]