28895713

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19751}}^1$

素因数の和:19788

約数の個数: 16

約数和(自身を含む): 37923840

約数和(自身を除く): 9028127

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 19751, 138257, 217261, 375269, 1520827, 2626883, 4127959, 28895713]

約数ペア:

[(1, 28895713), (7, 4127959), (11, 2626883), (19, 1520827), (77, 375269), (133, 217261), (209, 138257), (1463, 19751)]