21080198403

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{387853}}^1$

素因数の和:387937

約数の個数: 40

約数和(自身を含む): 34916168496

約数和(自身を除く): 13835970093

約数列:

[1, 3, 9, 11, 27, 33, 61, 81, 99, 183, 297, 549, 671, 891, 1647, 2013, 4941, 6039, 18117, 54351, 387853, 1163559, 3490677, 4266383, 10472031, 12799149, 23659033, 31416093, 38397447, 70977099, 115192341, 212931297, 260249363, 345577023, 638793891, 780748089, 1916381673, 2342244267, 7026732801, 21080198403]

約数ペア:

[(1, 21080198403), (3, 7026732801), (9, 2342244267), (11, 1916381673), (27, 780748089), (33, 638793891), (61, 345577023), (81, 260249363), (99, 212931297), (183, 115192341), (297, 70977099), (549, 38397447), (671, 31416093), (891, 23659033), (1647, 12799149), (2013, 10472031), (4941, 4266383), (6039, 3490677), (18117, 1163559), (54351, 387853)]