20501211

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{3761}}^1$

素因数の和:3866

約数の個数: 16

約数和(自身を含む): 28892160

約数和(自身を除く): 8390949

約数列:

[1, 3, 23, 69, 79, 237, 1817, 3761, 5451, 11283, 86503, 259509, 297119, 891357, 6833737, 20501211]

約数ペア:

[(1, 20501211), (3, 6833737), (23, 891357), (69, 297119), (79, 259509), (237, 86503), (1817, 11283), (3761, 5451)]