20835311

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{521}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 24805440

約数和(自身を除く): 3970129

約数列:

[1, 7, 29, 197, 203, 521, 1379, 3647, 5713, 15109, 39991, 102637, 105763, 718459, 2976473, 20835311]

約数ペア:

[(1, 20835311), (7, 2976473), (29, 718459), (197, 105763), (203, 102637), (521, 39991), (1379, 15109), (3647, 5713)]