166543209

素因数分解:

$3^5\times 7^2\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 295783488

約数和(自身を除く): 129240279

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 81, 147, 189, 197, 213, 243, 441, 497, 567, 591, 639, 1323, 1379, 1491, 1701, 1773, 1917, 3479, 3969, 4137, 4473, 5319, 5751, 9653, 10437, 11907, 12411, 13419, 13987, 15957, 17253, 28959, 31311, 37233, 40257, 41961, 47871, 86877, 93933, 97909, 111699, 120771, 125883, 260631, 281799, 293727, 335097, 377649, 685363, 781893, 845397, 881181, 1132947, 2056089, 2345679, 2643543, 3398841, 6168267, 7930629, 18504801, 23791887, 55514403, 166543209]

約数ペア:

[(1, 166543209), (3, 55514403), (7, 23791887), (9, 18504801), (21, 7930629), (27, 6168267), (49, 3398841), (63, 2643543), (71, 2345679), (81, 2056089), (147, 1132947), (189, 881181), (197, 845397), (213, 781893), (243, 685363), (441, 377649), (497, 335097), (567, 293727), (591, 281799), (639, 260631), (1323, 125883), (1379, 120771), (1491, 111699), (1701, 97909), (1773, 93933), (1917, 86877), (3479, 47871), (3969, 41961), (4137, 40257), (4473, 37233), (5319, 31311), (5751, 28959), (9653, 17253), (10437, 15957), (11907, 13987), (12411, 13419)]