28717815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{273503}}^1$

素因数の和:273518

約数の個数: 16

約数和(自身を含む): 52512768

約数和(自身を除く): 23794953

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 273503, 820509, 1367515, 1914521, 4102545, 5743563, 9572605, 28717815]

約数ペア:

[(1, 28717815), (3, 9572605), (5, 5743563), (7, 4102545), (15, 1914521), (21, 1367515), (35, 820509), (105, 273503)]