20757755

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{853}}^1$

素因数の和:1046

約数の個数: 16

約数和(自身を含む): 25906944

約数和(自身を除く): 5149189

約数列:

[1, 5, 31, 155, 157, 785, 853, 4265, 4867, 24335, 26443, 132215, 133921, 669605, 4151551, 20757755]

約数ペア:

[(1, 20757755), (5, 4151551), (31, 669605), (155, 133921), (157, 132215), (785, 26443), (853, 24335), (4265, 4867)]