20375391

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1997}}^1$

素因数の和:2198

約数の個数: 16

約数和(自身を含む): 28771200

約数和(自身を除く): 8395809

約数列:

[1, 3, 19, 57, 179, 537, 1997, 3401, 5991, 10203, 37943, 113829, 357463, 1072389, 6791797, 20375391]

約数ペア:

[(1, 20375391), (3, 6791797), (19, 1072389), (57, 357463), (179, 113829), (537, 37943), (1997, 10203), (3401, 5991)]