51239643

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{26813}}^1$

素因数の和:26843

約数の個数: 24

約数和(自身を含む): 85590288

約数和(自身を除く): 34350645

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 26813, 80439, 187691, 348569, 563073, 1045707, 1313837, 2439983, 3941511, 7319949, 17079881, 51239643]

約数ペア:

[(1, 51239643), (3, 17079881), (7, 7319949), (13, 3941511), (21, 2439983), (39, 1313837), (49, 1045707), (91, 563073), (147, 348569), (273, 187691), (637, 80439), (1911, 26813)]