20210859

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{599}}^1$

素因数の和:791

約数の個数: 24

約数和(自身を含む): 30700800

約数和(自身を除く): 10489941

約数列:

[1, 3, 9, 23, 69, 163, 207, 489, 599, 1467, 1797, 3749, 5391, 11247, 13777, 33741, 41331, 97637, 123993, 292911, 878733, 2245651, 6736953, 20210859]

約数ペア:

[(1, 20210859), (3, 6736953), (9, 2245651), (23, 878733), (69, 292911), (163, 123993), (207, 97637), (489, 41331), (599, 33741), (1467, 13777), (1797, 11247), (3749, 5391)]