28136787

素因数分解:

$3^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{2027}}^1$

素因数の和:2698

約数の個数: 16

約数和(自身を含む): 42961152

約数和(自身を除く): 14824365

約数列:

[1, 3, 7, 21, 661, 1983, 2027, 4627, 6081, 13881, 14189, 42567, 1339847, 4019541, 9378929, 28136787]

約数ペア:

[(1, 28136787), (3, 9378929), (7, 4019541), (21, 1339847), (661, 42567), (1983, 14189), (2027, 13881), (4627, 6081)]