18113781

素因数分解:

$3^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{827}}^1$

素因数の和:993

約数の個数: 24

約数和(自身を含む): 28317600

約数和(自身を除く): 10203819

約数列:

[1, 3, 7, 21, 49, 147, 149, 447, 827, 1043, 2481, 3129, 5789, 7301, 17367, 21903, 40523, 121569, 123223, 369669, 862561, 2587683, 6037927, 18113781]

約数ペア:

[(1, 18113781), (3, 6037927), (7, 2587683), (21, 862561), (49, 369669), (147, 123223), (149, 121569), (447, 40523), (827, 21903), (1043, 17367), (2481, 7301), (3129, 5789)]