51491457

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 56

約数和(自身を含む): 83732544

約数和(自身を除く): 32241087

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 83, 111, 207, 243, 249, 333, 621, 729, 747, 851, 999, 1863, 1909, 2241, 2553, 2997, 3071, 5589, 5727, 6723, 7659, 8991, 9213, 16767, 17181, 20169, 22977, 26973, 27639, 51543, 60507, 68931, 70633, 82917, 154629, 206793, 211899, 248751, 463887, 620379, 635697, 746253, 1391661, 1907091, 2238759, 5721273, 17163819, 51491457]

約数ペア:

[(1, 51491457), (3, 17163819), (9, 5721273), (23, 2238759), (27, 1907091), (37, 1391661), (69, 746253), (81, 635697), (83, 620379), (111, 463887), (207, 248751), (243, 211899), (249, 206793), (333, 154629), (621, 82917), (729, 70633), (747, 68931), (851, 60507), (999, 51543), (1863, 27639), (1909, 26973), (2241, 22977), (2553, 20169), (2997, 17181), (3071, 16767), (5589, 9213), (5727, 8991), (6723, 7659)]