19857242

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{3989}}^1$

素因数の和:4141

約数の個数: 16

約数和(自身を含む): 31600800

約数和(自身を除く): 11743558

約数列:

[1, 2, 19, 38, 131, 262, 2489, 3989, 4978, 7978, 75791, 151582, 522559, 1045118, 9928621, 19857242]

約数ペア:

[(1, 19857242), (2, 9928621), (19, 1045118), (38, 522559), (131, 151582), (262, 75791), (2489, 7978), (3989, 4978)]