20165989767

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1\times {\mathrm{1873}}^1$

素因数の和:2388

約数の個数: 64

約数和(自身を含む): 33896792064

約数和(自身を除く): 13730802297

約数列:

[1, 3, 7, 11, 21, 33, 77, 127, 231, 367, 381, 889, 1101, 1397, 1873, 2569, 2667, 4037, 4191, 5619, 7707, 9779, 12111, 13111, 20603, 28259, 29337, 39333, 46609, 61809, 84777, 139827, 144221, 237871, 326263, 432663, 512699, 687391, 713613, 978789, 1538097, 1665097, 2062173, 2616581, 3588893, 4811737, 4995291, 7561301, 7849743, 10766679, 14435211, 18316067, 22683903, 52929107, 54948201, 87298657, 158787321, 261895971, 611090599, 960285227, 1833271797, 2880855681, 6721996589, 20165989767]

約数ペア:

[(1, 20165989767), (3, 6721996589), (7, 2880855681), (11, 1833271797), (21, 960285227), (33, 611090599), (77, 261895971), (127, 158787321), (231, 87298657), (367, 54948201), (381, 52929107), (889, 22683903), (1101, 18316067), (1397, 14435211), (1873, 10766679), (2569, 7849743), (2667, 7561301), (4037, 4995291), (4191, 4811737), (5619, 3588893), (7707, 2616581), (9779, 2062173), (12111, 1665097), (13111, 1538097), (20603, 978789), (28259, 713613), (29337, 687391), (39333, 512699), (46609, 432663), (61809, 326263), (84777, 237871), (139827, 144221)]