51189651

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 56

約数和(自身を含む): 83102976

約数和(自身を除く): 31913325

約数列:

[1, 3, 9, 23, 27, 43, 69, 71, 81, 129, 207, 213, 243, 387, 621, 639, 729, 989, 1161, 1633, 1863, 1917, 2967, 3053, 3483, 4899, 5589, 5751, 8901, 9159, 10449, 14697, 16767, 17253, 26703, 27477, 31347, 44091, 51759, 70219, 80109, 82431, 132273, 210657, 240327, 247293, 396819, 631971, 720981, 741879, 1190457, 1895913, 2225637, 5687739, 17063217, 51189651]

約数ペア:

[(1, 51189651), (3, 17063217), (9, 5687739), (23, 2225637), (27, 1895913), (43, 1190457), (69, 741879), (71, 720981), (81, 631971), (129, 396819), (207, 247293), (213, 240327), (243, 210657), (387, 132273), (621, 82431), (639, 80109), (729, 70219), (989, 51759), (1161, 44091), (1633, 31347), (1863, 27477), (1917, 26703), (2967, 17253), (3053, 16767), (3483, 14697), (4899, 10449), (5589, 9159), (5751, 8901)]