28903755

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 48614400

約数和(自身を除く): 19710645

約数列:

[1, 3, 5, 15, 23, 69, 115, 199, 345, 421, 597, 995, 1263, 2105, 2985, 4577, 6315, 9683, 13731, 22885, 29049, 48415, 68655, 83779, 145245, 251337, 418895, 1256685, 1926917, 5780751, 9634585, 28903755]

約数ペア:

[(1, 28903755), (3, 9634585), (5, 5780751), (15, 1926917), (23, 1256685), (69, 418895), (115, 251337), (199, 145245), (345, 83779), (421, 68655), (597, 48415), (995, 29049), (1263, 22885), (2105, 13731), (2985, 9683), (4577, 6315)]