201662391

素因数分解:

$3^1\times 7^4\times {\mathrm{27997}}^1$

素因数の和:28028

約数の個数: 20

約数和(自身を含む): 313689592

約数和(自身を除く): 112027201

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 27997, 83991, 195979, 587937, 1371853, 4115559, 9602971, 28808913, 67220797, 201662391]

約数ペア:

[(1, 201662391), (3, 67220797), (7, 28808913), (21, 9602971), (49, 4115559), (147, 1371853), (343, 587937), (1029, 195979), (2401, 83991), (7203, 27997)]