28049265

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20107}}^1$

素因数の和:20149

約数の個数: 24

約数和(自身を含む): 50189568

約数和(自身を除く): 22140303

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20107, 60321, 100535, 180963, 301605, 623317, 904815, 1869951, 3116585, 5609853, 9349755, 28049265]

約数ペア:

[(1, 28049265), (3, 9349755), (5, 5609853), (9, 3116585), (15, 1869951), (31, 904815), (45, 623317), (93, 301605), (155, 180963), (279, 100535), (465, 60321), (1395, 20107)]