20216447979

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1\times {\mathrm{709}}^1$

素因数の和:1129

約数の個数: 96

約数和(自身を含む): 34701891840

約数和(自身を除く): 14485443861

約数列:

[1, 3, 7, 13, 21, 39, 43, 49, 91, 129, 147, 273, 301, 347, 559, 637, 709, 903, 1041, 1677, 1911, 2107, 2127, 2429, 3913, 4511, 4963, 6321, 7287, 9217, 11739, 13533, 14889, 14921, 17003, 27391, 27651, 30487, 31577, 34741, 44763, 51009, 64519, 82173, 91461, 94731, 104223, 104447, 193557, 193973, 213409, 221039, 246023, 313341, 396331, 451633, 581919, 640227, 663117, 731129, 738069, 1188993, 1354899, 1357811, 1493863, 1722161, 2193387, 2774317, 3198299, 4073433, 4481589, 5166483, 8322951, 9504677, 9594897, 10578989, 12055127, 19420219, 22388093, 28514031, 31736967, 36165381, 58260657, 67164279, 74052923, 137526857, 156716651, 222158769, 412580571, 470149953, 518370461, 962687999, 1555111383, 2888063997, 6738815993, 20216447979]

約数ペア:

[(1, 20216447979), (3, 6738815993), (7, 2888063997), (13, 1555111383), (21, 962687999), (39, 518370461), (43, 470149953), (49, 412580571), (91, 222158769), (129, 156716651), (147, 137526857), (273, 74052923), (301, 67164279), (347, 58260657), (559, 36165381), (637, 31736967), (709, 28514031), (903, 22388093), (1041, 19420219), (1677, 12055127), (1911, 10578989), (2107, 9594897), (2127, 9504677), (2429, 8322951), (3913, 5166483), (4511, 4481589), (4963, 4073433), (6321, 3198299), (7287, 2774317), (9217, 2193387), (11739, 1722161), (13533, 1493863), (14889, 1357811), (14921, 1354899), (17003, 1188993), (27391, 738069), (27651, 731129), (30487, 663117), (31577, 640227), (34741, 581919), (44763, 451633), (51009, 396331), (64519, 313341), (82173, 246023), (91461, 221039), (94731, 213409), (104223, 193973), (104447, 193557)]