20207943

素因数分解:

$3^2\times 7^2\times {\mathrm{45823}}^1$

素因数の和:45843

約数の個数: 18

約数和(自身を含む): 33955584

約数和(自身を除く): 13747641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45823, 137469, 320761, 412407, 962283, 2245327, 2886849, 6735981, 20207943]

約数ペア:

[(1, 20207943), (3, 6735981), (7, 2886849), (9, 2245327), (21, 962283), (49, 412407), (63, 320761), (147, 137469), (441, 45823)]