28321135

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{2053}}^1$

素因数の和:2178

約数の個数: 16

約数和(自身を含む): 35493120

約数和(自身を除く): 7171985

約数列:

[1, 5, 31, 89, 155, 445, 2053, 2759, 10265, 13795, 63643, 182717, 318215, 913585, 5664227, 28321135]

約数ペア:

[(1, 28321135), (5, 5664227), (31, 913585), (89, 318215), (155, 182717), (445, 63643), (2053, 13795), (2759, 10265)]