20837103

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{6163}}^1$

素因数の和:6203

約数の個数: 24

約数和(自身を含む): 33729408

約数和(自身を除く): 12892305

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 6163, 18489, 43141, 129423, 141749, 301987, 425247, 905961, 992243, 2976729, 6945701, 20837103]

約数ペア:

[(1, 20837103), (3, 6945701), (7, 2976729), (21, 992243), (23, 905961), (49, 425247), (69, 301987), (147, 141749), (161, 129423), (483, 43141), (1127, 18489), (3381, 6163)]