28911935

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{4157}}^1$

素因数の和:4282

約数の個数: 16

約数和(自身を含む): 37721376

約数和(自身を除く): 8809441

約数列:

[1, 5, 13, 65, 107, 535, 1391, 4157, 6955, 20785, 54041, 270205, 444799, 2223995, 5782387, 28911935]

約数ペア:

[(1, 28911935), (5, 5782387), (13, 2223995), (65, 444799), (107, 270205), (535, 54041), (1391, 20785), (4157, 6955)]