18867669

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 27287040

約数和(自身を除く): 8419371

約数列:

[1, 3, 37, 43, 59, 67, 111, 129, 177, 201, 1591, 2183, 2479, 2537, 2881, 3953, 4773, 6549, 7437, 7611, 8643, 11859, 93869, 106597, 146261, 169979, 281607, 319791, 438783, 509937, 6289223, 18867669]

約数ペア:

[(1, 18867669), (3, 6289223), (37, 509937), (43, 438783), (59, 319791), (67, 281607), (111, 169979), (129, 146261), (177, 106597), (201, 93869), (1591, 11859), (2183, 8643), (2479, 7611), (2537, 7437), (2881, 6549), (3953, 4773)]