20712759

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{2069}}^1$

素因数の和:2190

約数の個数: 16

約数和(自身を含む): 28615680

約数和(自身を除く): 7902921

約数列:

[1, 3, 47, 71, 141, 213, 2069, 3337, 6207, 10011, 97243, 146899, 291729, 440697, 6904253, 20712759]

約数ペア:

[(1, 20712759), (3, 6904253), (47, 440697), (71, 291729), (141, 146899), (213, 97243), (2069, 10011), (3337, 6207)]