20671937

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3907}}^1$

素因数の和:3968

約数の個数: 16

約数和(自身を含む): 24948672

約数和(自身を除く): 4276735

約数列:

[1, 11, 13, 37, 143, 407, 481, 3907, 5291, 42977, 50791, 144559, 558701, 1590149, 1879267, 20671937]

約数ペア:

[(1, 20671937), (11, 1879267), (13, 1590149), (37, 558701), (143, 144559), (407, 50791), (481, 42977), (3907, 5291)]