20520591

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{75167}}^1$

素因数の和:75190

約数の個数: 16

約数和(自身を含む): 33675264

約数和(自身を除く): 13154673

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 75167, 225501, 526169, 977171, 1578507, 2931513, 6840197, 20520591]

約数ペア:

[(1, 20520591), (3, 6840197), (7, 2931513), (13, 1578507), (21, 977171), (39, 526169), (91, 225501), (273, 75167)]