18876273

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 29175552

約数和(自身を除く): 10299279

約数列:

[1, 3, 13, 17, 39, 51, 71, 213, 221, 401, 663, 923, 1203, 1207, 2769, 3621, 5213, 6817, 15639, 15691, 20451, 28471, 47073, 85413, 88621, 265863, 370123, 484007, 1110369, 1452021, 6292091, 18876273]

約数ペア:

[(1, 18876273), (3, 6292091), (13, 1452021), (17, 1110369), (39, 484007), (51, 370123), (71, 265863), (213, 88621), (221, 85413), (401, 47073), (663, 28471), (923, 20451), (1203, 15691), (1207, 15639), (2769, 6817), (3621, 5213)]