20210727229

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{1871}}^1$

素因数の和:2319

約数の個数: 40

約数和(自身を含む): 25797882240

約数和(自身を除く): 5587155011

約数列:

[1, 7, 11, 49, 77, 343, 409, 539, 1871, 2401, 2863, 3773, 4499, 13097, 20041, 20581, 26411, 31493, 91679, 140287, 144067, 220451, 641753, 765239, 982009, 1008469, 1543157, 4492271, 5356673, 7059283, 8417629, 10802099, 37496711, 49414981, 58923403, 262476977, 412463821, 1837338839, 2887246747, 20210727229]

約数ペア:

[(1, 20210727229), (7, 2887246747), (11, 1837338839), (49, 412463821), (77, 262476977), (343, 58923403), (409, 49414981), (539, 37496711), (1871, 10802099), (2401, 8417629), (2863, 7059283), (3773, 5356673), (4499, 4492271), (13097, 1543157), (20041, 1008469), (20581, 982009), (26411, 765239), (31493, 641753), (91679, 220451), (140287, 144067)]