20070723

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{991}}^1$

素因数の和:1194

約数の個数: 16

約数和(自身を含む): 27585536

約数和(自身を除く): 7514813

約数列:

[1, 3, 43, 129, 157, 471, 991, 2973, 6751, 20253, 42613, 127839, 155587, 466761, 6690241, 20070723]

約数ペア:

[(1, 20070723), (3, 6690241), (43, 466761), (129, 155587), (157, 127839), (471, 42613), (991, 20253), (2973, 6751)]