28181615

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{10457}}^1$

素因数の和:10487

約数の個数: 24

約数和(自身を含む): 42919632

約数和(自身を除く): 14738017

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 10457, 52285, 73199, 115027, 365995, 512393, 575135, 805189, 2561965, 4025945, 5636323, 28181615]

約数ペア:

[(1, 28181615), (5, 5636323), (7, 4025945), (11, 2561965), (35, 805189), (49, 575135), (55, 512393), (77, 365995), (245, 115027), (385, 73199), (539, 52285), (2695, 10457)]