20749207917

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 29487338496

約数和(自身を除く): 8738130579

約数列:

[1, 3, 43, 53, 107, 113, 129, 159, 251, 321, 339, 753, 2279, 4601, 4859, 5671, 5989, 6837, 10793, 12091, 13303, 13803, 14577, 17013, 17967, 26857, 28363, 32379, 36273, 39909, 80571, 85089, 243853, 257527, 519913, 572029, 640823, 731559, 772581, 1154851, 1219609, 1423421, 1503239, 1559739, 1716087, 1922469, 3034841, 3464553, 3658827, 4270263, 4509717, 9104523, 27555389, 61207103, 64639277, 82666167, 130498163, 160846573, 183621309, 193917831, 391494489, 482539719, 6916402639, 20749207917]

約数ペア:

[(1, 20749207917), (3, 6916402639), (43, 482539719), (53, 391494489), (107, 193917831), (113, 183621309), (129, 160846573), (159, 130498163), (251, 82666167), (321, 64639277), (339, 61207103), (753, 27555389), (2279, 9104523), (4601, 4509717), (4859, 4270263), (5671, 3658827), (5989, 3464553), (6837, 3034841), (10793, 1922469), (12091, 1716087), (13303, 1559739), (13803, 1503239), (14577, 1423421), (17013, 1219609), (17967, 1154851), (26857, 772581), (28363, 731559), (32379, 640823), (36273, 572029), (39909, 519913), (80571, 257527), (85089, 243853)]