28704143

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 33572448

約数和(自身を除く): 4868305

約数列:

[1, 13, 17, 97, 103, 169, 221, 1261, 1339, 1649, 1751, 2873, 9991, 16393, 17407, 21437, 22763, 129883, 169847, 278681, 295919, 1688479, 2208011, 28704143]

約数ペア:

[(1, 28704143), (13, 2208011), (17, 1688479), (97, 295919), (103, 278681), (169, 169847), (221, 129883), (1261, 22763), (1339, 21437), (1649, 17407), (1751, 16393), (2873, 9991)]