20004721971

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{118709}}^1$

素因数の和:118903

約数の個数: 32

約数和(自身を含む): 29914920000

約数和(自身を除く): 9910198029

約数列:

[1, 3, 13, 29, 39, 87, 149, 377, 447, 1131, 1937, 4321, 5811, 12963, 56173, 118709, 168519, 356127, 1543217, 3442561, 4629651, 10327683, 17687641, 44753293, 53062923, 134259879, 229939333, 512941589, 689817999, 1538824767, 6668240657, 20004721971]

約数ペア:

[(1, 20004721971), (3, 6668240657), (13, 1538824767), (29, 689817999), (39, 512941589), (87, 229939333), (149, 134259879), (377, 53062923), (447, 44753293), (1131, 17687641), (1937, 10327683), (4321, 4629651), (5811, 3442561), (12963, 1543217), (56173, 356127), (118709, 168519)]