19161531

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 28783040

約数和(自身を除く): 9621509

約数列:

[1, 3, 9, 43, 67, 129, 201, 387, 603, 739, 2217, 2881, 6651, 8643, 25929, 31777, 49513, 95331, 148539, 285993, 445617, 2129059, 6387177, 19161531]

約数ペア:

[(1, 19161531), (3, 6387177), (9, 2129059), (43, 445617), (67, 285993), (129, 148539), (201, 95331), (387, 49513), (603, 31777), (739, 25929), (2217, 8643), (2881, 6651)]