71811117

素因数分解:

$3^5\times 7^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 129301536

約数和(自身を除く): 57490419

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 81, 111, 147, 163, 189, 243, 259, 333, 441, 489, 567, 777, 999, 1141, 1323, 1467, 1701, 1813, 2331, 2997, 3423, 3969, 4401, 5439, 6031, 6993, 7987, 8991, 10269, 11907, 13203, 16317, 18093, 20979, 23961, 30807, 39609, 42217, 48951, 54279, 62937, 71883, 92421, 126651, 146853, 162837, 215649, 277263, 295519, 379953, 440559, 488511, 646947, 886557, 1139859, 1465533, 1940841, 2659671, 3419577, 7979013, 10258731, 23937039, 71811117]

約数ペア:

[(1, 71811117), (3, 23937039), (7, 10258731), (9, 7979013), (21, 3419577), (27, 2659671), (37, 1940841), (49, 1465533), (63, 1139859), (81, 886557), (111, 646947), (147, 488511), (163, 440559), (189, 379953), (243, 295519), (259, 277263), (333, 215649), (441, 162837), (489, 146853), (567, 126651), (777, 92421), (999, 71883), (1141, 62937), (1323, 54279), (1467, 48951), (1701, 42217), (1813, 39609), (2331, 30807), (2997, 23961), (3423, 20979), (3969, 18093), (4401, 16317), (5439, 13203), (6031, 11907), (6993, 10269), (7987, 8991)]