28220379

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37181}}^1$

素因数の和:37218

約数の個数: 16

約数和(自身を含む): 42833664

約数和(自身を除く): 14613285

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 37181, 111543, 408991, 855163, 1226973, 2565489, 9406793, 28220379]

約数ペア:

[(1, 28220379), (3, 9406793), (11, 2565489), (23, 1226973), (33, 855163), (69, 408991), (253, 111543), (759, 37181)]