20973723

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{7069}}^1$

素因数の和:7138

約数の個数: 16

約数和(自身を含む): 29863680

約数和(自身を除く): 8889957

約数列:

[1, 3, 23, 43, 69, 129, 989, 2967, 7069, 21207, 162587, 303967, 487761, 911901, 6991241, 20973723]

約数ペア:

[(1, 20973723), (3, 6991241), (23, 911901), (43, 487761), (69, 303967), (129, 162587), (989, 21207), (2967, 7069)]