20475335

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:634

約数の個数: 16

約数和(自身を含む): 25157952

約数和(自身を除く): 4682617

約数列:

[1, 5, 71, 137, 355, 421, 685, 2105, 9727, 29891, 48635, 57677, 149455, 288385, 4095067, 20475335]

約数ペア:

[(1, 20475335), (5, 4095067), (71, 288385), (137, 149455), (355, 57677), (421, 48635), (685, 29891), (2105, 9727)]