28939729

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1439}}^1$

素因数の和:1489

約数の個数: 24

約数和(自身を含む): 37946880

約数和(自身を除く): 9007151

約数列:

[1, 7, 13, 17, 91, 119, 169, 221, 1183, 1439, 1547, 2873, 10073, 18707, 20111, 24463, 130949, 171241, 243191, 318019, 1702337, 2226133, 4134247, 28939729]

約数ペア:

[(1, 28939729), (7, 4134247), (13, 2226133), (17, 1702337), (91, 318019), (119, 243191), (169, 171241), (221, 130949), (1183, 24463), (1439, 20111), (1547, 18707), (2873, 10073)]