28711245

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83221}}^1$

素因数の和:83252

約数の個数: 16

約数和(自身を含む): 47935872

約数和(自身を除く): 19224627

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 83221, 249663, 416105, 1248315, 1914083, 5742249, 9570415, 28711245]

約数ペア:

[(1, 28711245), (3, 9570415), (5, 5742249), (15, 1914083), (23, 1248315), (69, 416105), (115, 249663), (345, 83221)]