78443883

素因数分解:

$3^4\times 7^1\times {\mathrm{138349}}^1$

素因数の和:138368

約数の個数: 20

約数和(自身を含む): 133922800

約数和(自身を除く): 55478917

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 138349, 415047, 968443, 1245141, 2905329, 3735423, 8715987, 11206269, 26147961, 78443883]

約数ペア:

[(1, 78443883), (3, 26147961), (7, 11206269), (9, 8715987), (21, 3735423), (27, 2905329), (63, 1245141), (81, 968443), (189, 415047), (567, 138349)]