13257555

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21557}}^1$

素因数の和:21606

約数の個数: 16

約数和(自身を含む): 21730464

約数和(自身を除く): 8472909

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 21557, 64671, 107785, 323355, 883837, 2651511, 4419185, 13257555]

約数ペア:

[(1, 13257555), (3, 4419185), (5, 2651511), (15, 883837), (41, 323355), (123, 107785), (205, 64671), (615, 21557)]