20122881

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{6661}}^1$

素因数の和:6736

約数の個数: 16

約数和(自身を含む): 28779840

約数和(自身を除く): 8656959

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 6661, 19983, 126559, 353033, 379677, 1059099, 6707627, 20122881]

約数ペア:

[(1, 20122881), (3, 6707627), (19, 1059099), (53, 379677), (57, 353033), (159, 126559), (1007, 19983), (3021, 6661)]