277816721

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2521}}^1$

素因数の和:2721

約数の個数: 24

約数和(自身を含む): 350184744

約数和(自身を除く): 72368023

約数列:

[1, 7, 13, 49, 91, 173, 637, 1211, 2249, 2521, 8477, 15743, 17647, 32773, 110201, 123529, 229411, 436133, 1605877, 3052931, 5669729, 21370517, 39688103, 277816721]

約数ペア:

[(1, 277816721), (7, 39688103), (13, 21370517), (49, 5669729), (91, 3052931), (173, 1605877), (637, 436133), (1211, 229411), (2249, 123529), (2521, 110201), (8477, 32773), (15743, 17647)]