20539239

素因数分解:

$3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{4271}}^1$

素因数の和:4510

約数の個数: 16

約数和(自身を含む): 31441920

約数和(自身を除く): 10902681

約数列:

[1, 3, 7, 21, 229, 687, 1603, 4271, 4809, 12813, 29897, 89691, 978059, 2934177, 6846413, 20539239]

約数ペア:

[(1, 20539239), (3, 6846413), (7, 2934177), (21, 978059), (229, 89691), (687, 29897), (1603, 12813), (4271, 4809)]