257240889

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{10709}}^1$

素因数の和:10889

約数の個数: 24

約数和(自身を含む): 395970120

約数和(自身を除く): 138729231

約数列:

[1, 3, 9, 17, 51, 153, 157, 471, 1413, 2669, 8007, 10709, 24021, 32127, 96381, 182053, 546159, 1638477, 1681313, 5043939, 15131817, 28582321, 85746963, 257240889]

約数ペア:

[(1, 257240889), (3, 85746963), (9, 28582321), (17, 15131817), (51, 5043939), (153, 1681313), (157, 1638477), (471, 546159), (1413, 182053), (2669, 96381), (8007, 32127), (10709, 24021)]