261764811

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17987}}^1$

素因数の和:18021

約数の個数: 48

約数和(自身を含む): 492151680

約数和(自身を除く): 230386869

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 231, 297, 441, 539, 693, 1323, 1617, 2079, 4851, 14553, 17987, 53961, 125909, 161883, 197857, 377727, 485649, 593571, 881363, 1133181, 1384999, 1780713, 2644089, 3399543, 4154997, 5342139, 7932267, 9694993, 12464991, 23796801, 29084979, 37394973, 87254937, 261764811]

約数ペア:

[(1, 261764811), (3, 87254937), (7, 37394973), (9, 29084979), (11, 23796801), (21, 12464991), (27, 9694993), (33, 7932267), (49, 5342139), (63, 4154997), (77, 3399543), (99, 2644089), (147, 1780713), (189, 1384999), (231, 1133181), (297, 881363), (441, 593571), (539, 485649), (693, 377727), (1323, 197857), (1617, 161883), (2079, 125909), (4851, 53961), (14553, 17987)]