72671781

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{277}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 123672192

約数和(自身を除く): 51000411

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 277, 403, 651, 831, 961, 1209, 1939, 2821, 2883, 3601, 5817, 6727, 8463, 8587, 10803, 12493, 20181, 25207, 25761, 37479, 60109, 75621, 87451, 111631, 180327, 262353, 266197, 334893, 781417, 798591, 1863379, 2344251, 3460561, 5590137, 10381683, 24223927, 72671781]

約数ペア:

[(1, 72671781), (3, 24223927), (7, 10381683), (13, 5590137), (21, 3460561), (31, 2344251), (39, 1863379), (91, 798591), (93, 781417), (217, 334893), (273, 266197), (277, 262353), (403, 180327), (651, 111631), (831, 87451), (961, 75621), (1209, 60109), (1939, 37479), (2821, 25761), (2883, 25207), (3601, 20181), (5817, 12493), (6727, 10803), (8463, 8587)]