28106949

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{6997}}^1$

素因数の和:7116

約数の個数: 16

約数和(自身を含む): 40756352

約数和(自身を除く): 12649403

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 6997, 20991, 90961, 272883, 720691, 2162073, 9368983, 28106949]

約数ペア:

[(1, 28106949), (3, 9368983), (13, 2162073), (39, 720691), (103, 272883), (309, 90961), (1339, 20991), (4017, 6997)]