21279350

素因数分解:

$2^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{2017}}^1$

素因数の和:2240

約数の個数: 24

約数和(自身を含む): 39786888

約数和(自身を除く): 18507538

約数列:

[1, 2, 5, 10, 25, 50, 211, 422, 1055, 2017, 2110, 4034, 5275, 10085, 10550, 20170, 50425, 100850, 425587, 851174, 2127935, 4255870, 10639675, 21279350]

約数ペア:

[(1, 21279350), (2, 10639675), (5, 4255870), (10, 2127935), (25, 851174), (50, 425587), (211, 100850), (422, 50425), (1055, 20170), (2017, 10550), (2110, 10085), (4034, 5275)]