28199265

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{81737}}^1$

素因数の和:81768

約数の個数: 16

約数和(自身を含む): 47081088

約数和(自身を除く): 18881823

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 81737, 245211, 408685, 1226055, 1879951, 5639853, 9399755, 28199265]

約数ペア:

[(1, 28199265), (3, 9399755), (5, 5639853), (15, 1879951), (23, 1226055), (69, 408685), (115, 245211), (345, 81737)]