20853345

素因数分解:

$3^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1657}}^1$

素因数の和:2504

約数の個数: 16

約数和(自身を含む): 33425280

約数和(自身を除く): 12571935

約数列:

[1, 3, 5, 15, 839, 1657, 2517, 4195, 4971, 8285, 12585, 24855, 1390223, 4170669, 6951115, 20853345]

約数ペア:

[(1, 20853345), (3, 6951115), (5, 4170669), (15, 1390223), (839, 24855), (1657, 12585), (2517, 8285), (4195, 4971)]