201831721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{5531}}^1$

素因数の和:5952

約数の個数: 16

約数和(自身を含む): 249072768

約数和(自身を除く): 47241047

約数列:

[1, 7, 13, 91, 401, 2807, 5213, 5531, 36491, 38717, 71903, 503321, 2217931, 15525517, 28833103, 201831721]

約数ペア:

[(1, 201831721), (7, 28833103), (13, 15525517), (91, 2217931), (401, 503321), (2807, 71903), (5213, 38717), (5531, 36491)]