20898381

素因数分解:

$3^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{2953}}^1$

素因数の和:3300

約数の個数: 16

約数和(自身を含む): 31950464

約数和(自身を除く): 11052083

約数列:

[1, 3, 7, 21, 337, 1011, 2359, 2953, 7077, 8859, 20671, 62013, 995161, 2985483, 6966127, 20898381]

約数ペア:

[(1, 20898381), (3, 6966127), (7, 2985483), (21, 995161), (337, 62013), (1011, 20671), (2359, 8859), (2953, 7077)]