20406123

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{787}}^1$

素因数の和:903

約数の個数: 24

約数和(自身を含む): 30650048

約数和(自身を除く): 10243925

約数列:

[1, 3, 9, 43, 67, 129, 201, 387, 603, 787, 2361, 2881, 7083, 8643, 25929, 33841, 52729, 101523, 158187, 304569, 474561, 2267347, 6802041, 20406123]

約数ペア:

[(1, 20406123), (3, 6802041), (9, 2267347), (43, 474561), (67, 304569), (129, 158187), (201, 101523), (387, 52729), (603, 33841), (787, 25929), (2361, 8643), (2881, 7083)]