20465731

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 24639120

約数和(自身を除く): 4173389

約数列:

[1, 11, 13, 101, 109, 143, 169, 1111, 1199, 1313, 1417, 1859, 11009, 14443, 15587, 17069, 18421, 121099, 143117, 187759, 202631, 1574287, 1860521, 20465731]

約数ペア:

[(1, 20465731), (11, 1860521), (13, 1574287), (101, 202631), (109, 187759), (143, 143117), (169, 121099), (1111, 18421), (1199, 17069), (1313, 15587), (1417, 14443), (1859, 11009)]