15663587381

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 18413196480

約数和(自身を除く): 2749609099

約数列:

[1, 13, 17, 61, 139, 169, 221, 643, 793, 1037, 1807, 2363, 2873, 8359, 8479, 10309, 10931, 13481, 23491, 30719, 39223, 89377, 108667, 110227, 142103, 144143, 175253, 399347, 509899, 666791, 1161901, 1432951, 1519409, 1847339, 1873859, 5451997, 6628687, 8668283, 15104713, 19752317, 24360167, 70875961, 92683949, 112687679, 256780121, 921387493, 1204891337, 15663587381]

約数ペア:

[(1, 15663587381), (13, 1204891337), (17, 921387493), (61, 256780121), (139, 112687679), (169, 92683949), (221, 70875961), (643, 24360167), (793, 19752317), (1037, 15104713), (1807, 8668283), (2363, 6628687), (2873, 5451997), (8359, 1873859), (8479, 1847339), (10309, 1519409), (10931, 1432951), (13481, 1161901), (23491, 666791), (30719, 509899), (39223, 399347), (89377, 175253), (108667, 144143), (110227, 142103)]