21113609

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4909}}^1$

素因数の和:4960

約数の個数: 16

約数和(自身を含む): 25453440

約数和(自身を除く): 4339831

約数列:

[1, 11, 17, 23, 187, 253, 391, 4301, 4909, 53999, 83453, 112907, 917983, 1241977, 1919419, 21113609]

約数ペア:

[(1, 21113609), (11, 1919419), (17, 1241977), (23, 917983), (187, 112907), (253, 83453), (391, 53999), (4301, 4909)]