20443380285

素因数分解:

$3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1660039}}^1$

素因数の和:1660868

約数の個数: 16

約数和(自身を含む): 32749269120

約数和(自身を除く): 12305888835

約数列:

[1, 3, 5, 15, 821, 2463, 4105, 12315, 1660039, 4980117, 8300195, 24900585, 1362892019, 4088676057, 6814460095, 20443380285]

約数ペア:

[(1, 20443380285), (3, 6814460095), (5, 4088676057), (15, 1362892019), (821, 24900585), (2463, 8300195), (4105, 4980117), (12315, 1660039)]