20505351

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{15641}}^1$

素因数の和:15686

約数の個数: 16

約数和(自身を含む): 30032640

約数和(自身を除く): 9527289

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 15641, 46923, 297179, 359743, 891537, 1079229, 6835117, 20505351]

約数ペア:

[(1, 20505351), (3, 6835117), (19, 1079229), (23, 891537), (57, 359743), (69, 297179), (437, 46923), (1311, 15641)]