1791020305

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^2$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 2251345536

約数和(自身を除く): 460325231

約数列:

[1, 5, 43, 47, 215, 235, 421, 2021, 2105, 10105, 18103, 19787, 90515, 98935, 177241, 850841, 886205, 4254205, 7621363, 8330327, 38106815, 41651635, 358204061, 1791020305]

約数ペア:

[(1, 1791020305), (5, 358204061), (43, 41651635), (47, 38106815), (215, 8330327), (235, 7621363), (421, 4254205), (2021, 886205), (2105, 850841), (10105, 177241), (18103, 98935), (19787, 90515)]