28717857

素因数分解:

$3^2\times 7^1\times {\mathrm{599}}^1\times {\mathrm{761}}^1$

素因数の和:1373

約数の個数: 24

約数和(自身を含む): 47548800

約数和(自身を除く): 18830943

約数列:

[1, 3, 7, 9, 21, 63, 599, 761, 1797, 2283, 4193, 5327, 5391, 6849, 12579, 15981, 37737, 47943, 455839, 1367517, 3190873, 4102551, 9572619, 28717857]

約数ペア:

[(1, 28717857), (3, 9572619), (7, 4102551), (9, 3190873), (21, 1367517), (63, 455839), (599, 47943), (761, 37737), (1797, 15981), (2283, 12579), (4193, 6849), (5327, 5391)]