28207545

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{81761}}^1$

素因数の和:81792

約数の個数: 16

約数和(自身を含む): 47094912

約数和(自身を除く): 18887367

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 81761, 245283, 408805, 1226415, 1880503, 5641509, 9402515, 28207545]

約数ペア:

[(1, 28207545), (3, 9402515), (5, 5641509), (15, 1880503), (23, 1226415), (69, 408805), (115, 245283), (345, 81761)]