81234279

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 147502080

約数和(自身を除く): 66267801

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 131, 153, 189, 193, 357, 393, 459, 579, 917, 1071, 1179, 1351, 1737, 2227, 2751, 3213, 3281, 3537, 4053, 5211, 6681, 8253, 9843, 12159, 15589, 20043, 22967, 24759, 25283, 29529, 36477, 46767, 60129, 68901, 75849, 88587, 140301, 176981, 206703, 227547, 420903, 429811, 530943, 620109, 682641, 1289433, 1592829, 3008677, 3868299, 4778487, 9026031, 11604897, 27078093, 81234279]

約数ペア:

[(1, 81234279), (3, 27078093), (7, 11604897), (9, 9026031), (17, 4778487), (21, 3868299), (27, 3008677), (51, 1592829), (63, 1289433), (119, 682641), (131, 620109), (153, 530943), (189, 429811), (193, 420903), (357, 227547), (393, 206703), (459, 176981), (579, 140301), (917, 88587), (1071, 75849), (1179, 68901), (1351, 60129), (1737, 46767), (2227, 36477), (2751, 29529), (3213, 25283), (3281, 24759), (3537, 22967), (4053, 20043), (5211, 15589), (6681, 12159), (8253, 9843)]