20451431

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20431}}^1$

素因数の和:20462

約数の個数: 16

約数和(自身を含む): 27460608

約数和(自身を除く): 7009177

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 20431, 143017, 224741, 265603, 1573187, 1859221, 2921633, 20451431]

約数ペア:

[(1, 20451431), (7, 2921633), (11, 1859221), (13, 1573187), (77, 265603), (91, 224741), (143, 143017), (1001, 20431)]