21555485

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26777}}^1$

素因数の和:26812

約数の個数: 16

約数和(自身を含む): 30848256

約数和(自身を除く): 9292771

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 26777, 133885, 187439, 615871, 937195, 3079355, 4311097, 21555485]

約数ペア:

[(1, 21555485), (5, 4311097), (7, 3079355), (23, 937195), (35, 615871), (115, 187439), (161, 133885), (805, 26777)]