18917977

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 21611520

約数和(自身を除く): 2693543

約数列:

[1, 13, 19, 191, 247, 401, 2483, 3629, 5213, 7619, 47177, 76591, 99047, 995683, 1455229, 18917977]

約数ペア:

[(1, 18917977), (13, 1455229), (19, 995683), (191, 99047), (247, 76591), (401, 47177), (2483, 7619), (3629, 5213)]