28118745

素因数分解:

$3^5\times 5^1\times {\mathrm{23143}}^1$

素因数の和:23163

約数の個数: 24

約数和(自身を含む): 50546496

約数和(自身を除く): 22427751

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 23143, 69429, 115715, 208287, 347145, 624861, 1041435, 1874583, 3124305, 5623749, 9372915, 28118745]

約数ペア:

[(1, 28118745), (3, 9372915), (5, 5623749), (9, 3124305), (15, 1874583), (27, 1041435), (45, 624861), (81, 347145), (135, 208287), (243, 115715), (405, 69429), (1215, 23143)]