20982855

素因数分解:

$3^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1973}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 33636960

約数和(自身を除く): 12654105

約数列:

[1, 3, 5, 15, 709, 1973, 2127, 3545, 5919, 9865, 10635, 29595, 1398857, 4196571, 6994285, 20982855]

約数ペア:

[(1, 20982855), (3, 6994285), (5, 4196571), (15, 1398857), (709, 29595), (1973, 10635), (2127, 9865), (3545, 5919)]