28886265

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20707}}^1$

素因数の和:20749

約数の個数: 24

約数和(自身を含む): 51687168

約数和(自身を除く): 22800903

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20707, 62121, 103535, 186363, 310605, 641917, 931815, 1925751, 3209585, 5777253, 9628755, 28886265]

約数ペア:

[(1, 28886265), (3, 9628755), (5, 5777253), (9, 3209585), (15, 1925751), (31, 931815), (45, 641917), (93, 310605), (155, 186363), (279, 103535), (465, 62121), (1395, 20707)]