20208951

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16883}}^1$

素因数の和:16915

約数の個数: 24

約数和(自身を含む): 35118720

約数和(自身を除く): 14909769

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16883, 50649, 118181, 151947, 320777, 354543, 962331, 1063629, 2245439, 2886993, 6736317, 20208951]

約数ペア:

[(1, 20208951), (3, 6736317), (7, 2886993), (9, 2245439), (19, 1063629), (21, 962331), (57, 354543), (63, 320777), (133, 151947), (171, 118181), (399, 50649), (1197, 16883)]