278340439

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 328237056

約数和(自身を除く): 49896617

約数列:

[1, 13, 17, 47, 127, 211, 221, 611, 799, 1651, 2159, 2743, 3587, 5969, 9917, 10387, 26797, 28067, 46631, 77597, 101473, 128921, 168589, 348361, 455549, 1259459, 1319149, 2191657, 5922137, 16372967, 21410803, 278340439]

約数ペア:

[(1, 278340439), (13, 21410803), (17, 16372967), (47, 5922137), (127, 2191657), (211, 1319149), (221, 1259459), (611, 455549), (799, 348361), (1651, 168589), (2159, 128921), (2743, 101473), (3587, 77597), (5969, 46631), (9917, 28067), (10387, 26797)]