20368019

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4139}}^1$

素因数の和:4202

約数の個数: 16

約数和(自身を含む): 25171200

約数和(自身を除く): 4803181

約数列:

[1, 7, 19, 37, 133, 259, 703, 4139, 4921, 28973, 78641, 153143, 550487, 1072001, 2909717, 20368019]

約数ペア:

[(1, 20368019), (7, 2909717), (19, 1072001), (37, 550487), (133, 153143), (259, 78641), (703, 28973), (4139, 4921)]