221609145

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{107839}}^1$

素因数の和:107984

約数の個数: 16

約数和(自身を含む): 357166080

約数和(自身を除く): 135556935

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 107839, 323517, 539195, 1617585, 14773943, 44321829, 73869715, 221609145]

約数ペア:

[(1, 221609145), (3, 73869715), (5, 44321829), (15, 14773943), (137, 1617585), (411, 539195), (685, 323517), (2055, 107839)]