20968269

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2861}}^1$

素因数の和:3220

約数の個数: 16

約数和(自身を含む): 32054400

約数和(自身を除く): 11086131

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 2861, 7329, 8583, 20027, 60081, 998489, 2995467, 6989423, 20968269]

約数ペア:

[(1, 20968269), (3, 6989423), (7, 2995467), (21, 998489), (349, 60081), (1047, 20027), (2443, 8583), (2861, 7329)]