15721468091

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{74297}}^1$

素因数の和:74403

約数の個数: 32

約数和(自身を含む): 19876200960

約数和(自身を除く): 4154732869

約数列:

[1, 7, 19, 37, 43, 133, 259, 301, 703, 817, 1591, 4921, 5719, 11137, 30229, 74297, 211603, 520079, 1411643, 2748989, 3194771, 9881501, 19242923, 22363397, 52230791, 60700649, 118206527, 365615537, 424904543, 827445689, 2245924013, 15721468091]

約数ペア:

[(1, 15721468091), (7, 2245924013), (19, 827445689), (37, 424904543), (43, 365615537), (133, 118206527), (259, 60700649), (301, 52230791), (703, 22363397), (817, 19242923), (1591, 9881501), (4921, 3194771), (5719, 2748989), (11137, 1411643), (30229, 520079), (74297, 211603)]