1215691749

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 1872509184

約数和(自身を除く): 656817435

約数列:

[1, 3, 9, 23, 69, 71, 181, 207, 213, 457, 543, 639, 1371, 1629, 1633, 4113, 4163, 4899, 10511, 12489, 12851, 14697, 31533, 32447, 37467, 38553, 82717, 94599, 97341, 115659, 248151, 292023, 295573, 744453, 746281, 886719, 1902491, 2238843, 2660157, 5707473, 5872907, 6716529, 17122419, 17618721, 52856163, 135076861, 405230583, 1215691749]

約数ペア:

[(1, 1215691749), (3, 405230583), (9, 135076861), (23, 52856163), (69, 17618721), (71, 17122419), (181, 6716529), (207, 5872907), (213, 5707473), (457, 2660157), (543, 2238843), (639, 1902491), (1371, 886719), (1629, 746281), (1633, 744453), (4113, 295573), (4163, 292023), (4899, 248151), (10511, 115659), (12489, 97341), (12851, 94599), (14697, 82717), (31533, 38553), (32447, 37467)]