81521912

素因数分解:

$2^3\times {\mathrm{521}}^1\times {\mathrm{19559}}^1$

素因数の和:20086

約数の個数: 16

約数和(自身を含む): 153154800

約数和(自身を除く): 71632888

約数列:

[1, 2, 4, 8, 521, 1042, 2084, 4168, 19559, 39118, 78236, 156472, 10190239, 20380478, 40760956, 81521912]

約数ペア:

[(1, 81521912), (2, 40760956), (4, 20380478), (8, 10190239), (521, 156472), (1042, 78236), (2084, 39118), (4168, 19559)]